53423722464 has 192 divisors, whose sum is σ = 163961634816. Its totient is φ = 14916109824.

The previous prime is 53423722441. The next prime is 53423722501. The reversal of 53423722464 is 46422732435.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5713377 + ... + 5722719.

It is an arithmetic number, because the mean of its divisors is an integer number (853966848).

Almost surely, 2^53423722464 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53423722464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81980817408).

53423722464 is an abundant number, since it is smaller than the sum of its proper divisors (110537912352).

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

53423722464 is a wasteful number, since it uses less digits than its factorization.

53423722464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9557 (or 9549 counting only the distinct ones).

The product of its digits is 967680, while the sum is 42.

The spelling of 53423722464 in words is "fifty-three billion, four hundred twenty-three million, seven hundred twenty-two thousand, four hundred sixty-four".