31243690946 has 16 divisors (see below), whose sum is σ = 50475030144. Its totient is φ = 14418892944.

The previous prime is 31243690931. The next prime is 31243690967. The reversal of 31243690946 is 64909634213.

It is a self number, because there is not a number n which added to its sum of digits gives 31243690946.

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, 289031 + ... + 382133.

It is an arithmetic number, because the mean of its divisors is an integer number (3154689384).

Almost surely, 2^31243690946 is an apocalyptic number.

31243690946 is a deficient number, since it is larger than the sum of its proper divisors (19231339198).

31243690946 is a wasteful number, since it uses less digits than its factorization.

31243690946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106025.

The product of its (nonzero) digits is 839808, while the sum is 47.

The spelling of 31243690946 in words is "thirty-one billion, two hundred forty-three million, six hundred ninety thousand, nine hundred forty-six".