31076643450 has 48 divisors (see below), whose sum is σ = 81603616320. Its totient is φ = 7799627520.

The previous prime is 31076643449. The next prime is 31076643457. The reversal of 31076643450 is 5434667013.

It is a junction number, because it is equal to n+sod(n) for n = 31076643399 and 31076643408.

It is not an unprimeable number, because it can be changed into a prime (31076643457) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6090910 + ... + 6096009.

It is an arithmetic number, because the mean of its divisors is an integer number (1700075340).

Almost surely, 2^31076643450 is an apocalyptic number.

31076643450 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

31076643450 is an abundant number, since it is smaller than the sum of its proper divisors (50526972870).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31076643450 is a wasteful number, since it uses less digits than its factorization.

31076643450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12186951 (or 12186946 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 39.

The spelling of 31076643450 in words is "thirty-one billion, seventy-six million, six hundred forty-three thousand, four hundred fifty".