39297894552 has 480 divisors, whose sum is σ = 138546936000. Its totient is φ = 10335983616.

The previous prime is 39297894511. The next prime is 39297894557. The reversal of 39297894552 is 25549879293.

39297894552 is a `hidden beast` number, since 3 + 9 + 2 + 9 + 78 + 9 + 4 + 552 = 666.

It is a super-2 number, since 2×39297894552² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a self number, because there is not a number n which added to its sum of digits gives 39297894552.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39297894557) by changing a digit.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 25369074 + ... + 25370622.

It is an arithmetic number, because the mean of its divisors is an integer number (288639450).

Almost surely, 2^39297894552 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 39297894552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69273468000).

39297894552 is an abundant number, since it is smaller than the sum of its proper divisors (99249041448).

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

39297894552 is a wasteful number, since it uses less digits than its factorization.

39297894552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1645 (or 1625 counting only the distinct ones).

The product of its digits is 48988800, while the sum is 63.

The spelling of 39297894552 in words is "thirty-nine billion, two hundred ninety-seven million, eight hundred ninety-four thousand, five hundred fifty-two".