97816517190 has 64 divisors (see below), whose sum is σ = 298107486720. Its totient is φ = 22358060640.

The previous prime is 97816517167. The next prime is 97816517263. The reversal of 97816517190 is 9171561879.

It is a super-2 number, since 2×97816517190² (a number of 23 digits) contains 22 as substring.

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

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 25875496 + ... + 25879275.

It is an arithmetic number, because the mean of its divisors is an integer number (4657929480).

Almost surely, 2^97816517190 is an apocalyptic number.

97816517190 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

97816517190 is an abundant number, since it is smaller than the sum of its proper divisors (200290969530).

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

97816517190 is a wasteful number, since it uses less digits than its factorization.

97816517190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51754794 (or 51754788 counting only the distinct ones).

The product of its (nonzero) digits is 952560, while the sum is 54.

The spelling of 97816517190 in words is "ninety-seven billion, eight hundred sixteen million, five hundred seventeen thousand, one hundred ninety".