52697744440 has 512 divisors, whose sum is σ = 151747706880. Its totient is φ = 16220160000.

The previous prime is 52697744401. The next prime is 52697744467. The reversal of 52697744440 is 4444779625.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 218662720 + ... + 218662960.

It is an arithmetic number, because the mean of its divisors is an integer number (296382240).

Almost surely, 2^52697744440 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 52697744440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75873853440).

52697744440 is an abundant number, since it is smaller than the sum of its proper divisors (99049962440).

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

52697744440 is a wasteful number, since it uses less digits than its factorization.

52697744440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 375 (or 371 counting only the distinct ones).

The product of its (nonzero) digits is 6773760, while the sum is 52.

The spelling of 52697744440 in words is "fifty-two billion, six hundred ninety-seven million, seven hundred forty-four thousand, four hundred forty".