85179929490 has 48 divisors (see below), whose sum is σ = 221491827648. Its totient is φ = 22712185248.

The previous prime is 85179929489. The next prime is 85179929533. The reversal of 85179929490 is 9492997158.

85179929490 is a `hidden beast` number, since 8 + 51 + 7 + 9 + 92 + 9 + 490 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 876049 + ... + 968411.

It is an arithmetic number, because the mean of its divisors is an integer number (4614413076).

Almost surely, 2^85179929490 is an apocalyptic number.

85179929490 is an abundant number, since it is smaller than the sum of its proper divisors (136311898158).

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

85179929490 is a wasteful number, since it uses less digits than its factorization.

85179929490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102623 (or 102620 counting only the distinct ones).

The product of its (nonzero) digits is 14696640, while the sum is 63.

The spelling of 85179929490 in words is "eighty-five billion, one hundred seventy-nine million, nine hundred twenty-nine thousand, four hundred ninety".