865337738652 has 48 divisors (see below), whose sum is σ = 2361545491200. Its totient is φ = 273264548400.

The previous prime is 865337738627. The next prime is 865337738653. The reversal of 865337738652 is 256837733568.

It is a happy number.

865337738652 is a `hidden beast` number, since 8 + 6 + 533 + 7 + 7 + 38 + 65 + 2 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 865337738652.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (865337738653) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 210850224 + ... + 210854327.

It is an arithmetic number, because the mean of its divisors is an integer number (49198864400).

Almost surely, 2^865337738652 is an apocalyptic number.

It is an amenable number.

865337738652 is an abundant number, since it is smaller than the sum of its proper divisors (1496207752548).

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

865337738652 is a wasteful number, since it uses less digits than its factorization.

865337738652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 421704583 (or 421704575 counting only the distinct ones).

The product of its digits is 152409600, while the sum is 63.

The spelling of 865337738652 in words is "eight hundred sixty-five billion, three hundred thirty-seven million, seven hundred thirty-eight thousand, six hundred fifty-two".