36991464858 has 16 divisors (see below), whose sum is σ = 82203255360. Its totient is φ = 12330488268.

The previous prime is 36991464841. The next prime is 36991464859. The reversal of 36991464858 is 85846419963.

36991464858 is a `hidden beast` number, since 3 + 6 + 9 + 9 + 146 + 485 + 8 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 36991464795 and 36991464804.

It is not an unprimeable number, because it can be changed into a prime (36991464859) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 342513510 + ... + 342513617.

It is an arithmetic number, because the mean of its divisors is an integer number (5137703460).

Almost surely, 2^36991464858 is an apocalyptic number.

36991464858 is an abundant number, since it is smaller than the sum of its proper divisors (45211790502).

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

36991464858 is a wasteful number, since it uses less digits than its factorization.

36991464858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 685027138 (or 685027132 counting only the distinct ones).

The product of its digits is 44789760, while the sum is 63.

The spelling of 36991464858 in words is "thirty-six billion, nine hundred ninety-one million, four hundred sixty-four thousand, eight hundred fifty-eight".