97891882155 has 40 divisors (see below), whose sum is σ = 176742812400. Its totient is φ = 51833369664.

The previous prime is 97891882103. The next prime is 97891882177. The reversal of 97891882155 is 55128819879.

It is not a de Polignac number, because 97891882155 - 2¹² = 97891878059 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 97891882092 and 97891882101.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 813160 + ... + 925749.

It is an arithmetic number, because the mean of its divisors is an integer number (4418570310).

Almost surely, 2^97891882155 is an apocalyptic number.

97891882155 is a deficient number, since it is larger than the sum of its proper divisors (78850930245).

97891882155 is a wasteful number, since it uses less digits than its factorization.

97891882155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1739065 (or 1739056 counting only the distinct ones).

The product of its digits is 14515200, while the sum is 63.

The spelling of 97891882155 in words is "ninety-seven billion, eight hundred ninety-one million, eight hundred eighty-two thousand, one hundred fifty-five".