897489290555 has 16 divisors (see below), whose sum is σ = 1265271616224. Its totient is φ = 602510292480.

The previous prime is 897489290497. The next prime is 897489290563. The reversal of 897489290555 is 555092984798.

It is not a de Polignac number, because 897489290555 - 2¹² = 897489286459 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 627614174 + ... + 627615603.

It is an arithmetic number, because the mean of its divisors is an integer number (79079476014).

Almost surely, 2^897489290555 is an apocalyptic number.

897489290555 is a deficient number, since it is larger than the sum of its proper divisors (367782325669).

897489290555 is a wasteful number, since it uses less digits than its factorization.

897489290555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1255229806.

The product of its (nonzero) digits is 326592000, while the sum is 71.

The spelling of 897489290555 in words is "eight hundred ninety-seven billion, four hundred eighty-nine million, two hundred ninety thousand, five hundred fifty-five".