36815507768864 has 36 divisors (see below), whose sum is σ = 79668682755102. Its totient is φ = 16734321711360.

The previous prime is 36815507768857. The next prime is 36815507768873. The reversal of 36815507768864 is 46886770551863.

It can be written as a sum of positive squares in only one way, i.e., 22961538912400 + 13853968856464 = 4791820^2 + 3722092^2 .

It is a super-2 number, since 2×36815507768864² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 36815507768791 and 36815507768800.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4754064797 + ... + 4754072540.

Almost surely, 2^{36815507768864} is an apocalyptic number.

It is an amenable number.

36815507768864 is an abundant number, since it is smaller than the sum of its proper divisors (42853174986238).

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

36815507768864 is a wasteful number, since it uses less digits than its factorization.

36815507768864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9508137369 (or 9508137350 counting only the distinct ones).

The product of its (nonzero) digits is 1625702400, while the sum is 74.

The spelling of 36815507768864 in words is "thirty-six trillion, eight hundred fifteen billion, five hundred seven million, seven hundred sixty-eight thousand, eight hundred sixty-four".