85415902618 has 16 divisors (see below), whose sum is σ = 138156661440. Its totient is φ = 39473330400.

The previous prime is 85415902601. The next prime is 85415902619. The reversal of 85415902618 is 81620951458.

It is not an unprimeable number, because it can be changed into a prime (85415902619) 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, 27410478 + ... + 27413593.

It is an arithmetic number, because the mean of its divisors is an integer number (8634791340).

Almost surely, 2^85415902618 is an apocalyptic number.

85415902618 is a deficient number, since it is larger than the sum of its proper divisors (52740758822).

85415902618 is a wasteful number, since it uses less digits than its factorization.

85415902618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54824133.

The product of its (nonzero) digits is 691200, while the sum is 49.

The spelling of 85415902618 in words is "eighty-five billion, four hundred fifteen million, nine hundred two thousand, six hundred eighteen".