31228896897 has 108 divisors (see below), whose sum is σ = 52039995280. Its totient is φ = 18724044240.

The previous prime is 31228896893. The next prime is 31228896911. The reversal of 31228896897 is 79869882213.

It is not a de Polignac number, because 31228896897 - 2² = 31228896893 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31228896893) by changing a digit.

It is a polite number, since it can be written in 107 ways as a sum of consecutive naturals, for example, 110349318 + ... + 110349600.

Almost surely, 2^31228896897 is an apocalyptic number.

It is an amenable number.

31228896897 is a deficient number, since it is larger than the sum of its proper divisors (20811098383).

31228896897 is an equidigital number, since it uses as much as digits as its factorization.

31228896897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 468 (or 436 counting only the distinct ones).

The product of its digits is 20901888, while the sum is 63.

The spelling of 31228896897 in words is "thirty-one billion, two hundred twenty-eight million, eight hundred ninety-six thousand, eight hundred ninety-seven".