36697561740 has 72 divisors (see below), whose sum is σ = 127218218400. Its totient is φ = 8388013824.

The previous prime is 36697561739. The next prime is 36697561759. The reversal of 36697561740 is 4716579663.

It is a happy number.

36697561740 is a `hidden beast` number, since 3 + 6 + 6 + 9 + 7 + 561 + 74 + 0 = 666.

It is a super-2 number, since 2×36697561740² (a number of 22 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14561265 + ... + 14563784.

It is an arithmetic number, because the mean of its divisors is an integer number (1766919700).

Almost surely, 2^36697561740 is an apocalyptic number.

36697561740 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

36697561740 is an abundant number, since it is smaller than the sum of its proper divisors (90520656660).

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

36697561740 is a wasteful number, since it uses less digits than its factorization.

36697561740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29125071 (or 29125066 counting only the distinct ones).

The product of its (nonzero) digits is 5715360, while the sum is 54.

The spelling of 36697561740 in words is "thirty-six billion, six hundred ninety-seven million, five hundred sixty-one thousand, seven hundred forty".