52849457640 has 576 divisors, whose sum is σ = 212874480000. Its totient is φ = 11749473792.

The previous prime is 52849457627. The next prime is 52849457653. The reversal of 52849457640 is 4675494825.

52849457640 is a `hidden beast` number, since 5 + 28 + 4 + 9 + 4 + 576 + 40 = 666.

It is an interprime number because it is at equal distance from previous prime (52849457627) and next prime (52849457653).

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

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 143 ways as a sum of consecutive naturals, for example, 17620861 + ... + 17623859.

It is an arithmetic number, because the mean of its divisors is an integer number (369573750).

Almost surely, 2^52849457640 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 52849457640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (106437240000).

52849457640 is an abundant number, since it is smaller than the sum of its proper divisors (160025022360).

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

52849457640 is a wasteful number, since it uses less digits than its factorization.

52849457640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3076 (or 3053 counting only the distinct ones).

The product of its (nonzero) digits is 9676800, while the sum is 54.

The spelling of 52849457640 in words is "fifty-two billion, eight hundred forty-nine million, four hundred fifty-seven thousand, six hundred forty".