52287790464 has 256 divisors, whose sum is σ = 189935424000. Its totient is φ = 13790103552.

The previous prime is 52287790459. The next prime is 52287790469. The reversal of 52287790464 is 46409778225.

52287790464 is a `hidden beast` number, since 5 + 2 + 28 + 77 + 90 + 464 = 666.

It is an interprime number because it is at equal distance from previous prime (52287790459) and next prime (52287790469).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 52287790464.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52287790469) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 231367 + ... + 397625.

It is an arithmetic number, because the mean of its divisors is an integer number (741935250).

Almost surely, 2^52287790464 is an apocalyptic number.

52287790464 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52287790464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94967712000).

52287790464 is an abundant number, since it is smaller than the sum of its proper divisors (137647633536).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

52287790464 is a wasteful number, since it uses less digits than its factorization.

52287790464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166302 (or 166284 counting only the distinct ones).

The product of its (nonzero) digits is 6773760, while the sum is 54.

The spelling of 52287790464 in words is "fifty-two billion, two hundred eighty-seven million, seven hundred ninety thousand, four hundred sixty-four".