31268491898 has 16 divisors (see below), whose sum is σ = 53610964224. Its totient is φ = 13398823440.

The previous prime is 31268491871. The next prime is 31268491907. The reversal of 31268491898 is 89819486213.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61865 + ... + 257612.

It is an arithmetic number, because the mean of its divisors is an integer number (3350685264).

Almost surely, 2^31268491898 is an apocalyptic number.

31268491898 is a deficient number, since it is larger than the sum of its proper divisors (22342472326).

31268491898 is a wasteful number, since it uses less digits than its factorization.

31268491898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 326477.

The product of its digits is 5971968, while the sum is 59.

The spelling of 31268491898 in words is "thirty-one billion, two hundred sixty-eight million, four hundred ninety-one thousand, eight hundred ninety-eight".