897856458511 has 8 divisors (see below), whose sum is σ = 901611605664. Its totient is φ = 894101556480.

The previous prime is 897856458509. The next prime is 897856458547. The reversal of 897856458511 is 115854658798.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 897856458511 - 2¹ = 897856458509 is a prime.

It is a super-2 number, since 2×897856458511² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (897856458571) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13773651 + ... + 13838683.

It is an arithmetic number, because the mean of its divisors is an integer number (112701450708).

Almost surely, 2^897856458511 is an apocalyptic number.

897856458511 is a deficient number, since it is larger than the sum of its proper divisors (3755147153).

897856458511 is a wasteful number, since it uses less digits than its factorization.

897856458511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122561.

The product of its digits is 96768000, while the sum is 67.

The spelling of 897856458511 in words is "eight hundred ninety-seven billion, eight hundred fifty-six million, four hundred fifty-eight thousand, five hundred eleven".