897974050505 has 32 divisors (see below), whose sum is σ = 1281243217920. Its totient is φ = 591198471360.

The previous prime is 897974050487. The next prime is 897974050517. The reversal of 897974050505 is 505050479798.

897974050505 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 897974050505 - 2²⁰ = 897973001929 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3120575 + ... + 3396164.

It is an arithmetic number, because the mean of its divisors is an integer number (40038850560).

Almost surely, 2^897974050505 is an apocalyptic number.

It is an amenable number.

897974050505 is a deficient number, since it is larger than the sum of its proper divisors (383269167415).

897974050505 is a wasteful number, since it uses less digits than its factorization.

897974050505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6516909.

The product of its (nonzero) digits is 15876000, while the sum is 59.

The spelling of 897974050505 in words is "eight hundred ninety-seven billion, nine hundred seventy-four million, fifty thousand, five hundred five".