85819997496 has 32 divisors (see below), whose sum is σ = 221470963200. Its totient is φ = 27683869920.

The previous prime is 85819997491. The next prime is 85819997503. The reversal of 85819997496 is 69479991858.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85819997491) 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, 57673986 + ... + 57675473.

It is an arithmetic number, because the mean of its divisors is an integer number (6920967600).

Almost surely, 2^85819997496 is an apocalyptic number.

It is an amenable number.

85819997496 is an abundant number, since it is smaller than the sum of its proper divisors (135650965704).

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

85819997496 is a wasteful number, since it uses less digits than its factorization.

85819997496 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115349499 (or 115349495 counting only the distinct ones).

The product of its digits is 352719360, while the sum is 75.

The spelling of 85819997496 in words is "eighty-five billion, eight hundred nineteen million, nine hundred ninety-seven thousand, four hundred ninety-six".