31373066406 has 32 divisors (see below), whose sum is σ = 68522744448. Its totient is φ = 9496931840.

The previous prime is 31373066401. The next prime is 31373066419. The reversal of 31373066406 is 60466037313.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31373066401) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 188475 + ... + 313478.

It is an arithmetic number, because the mean of its divisors is an integer number (2141335764).

Almost surely, 2^31373066406 is an apocalyptic number.

31373066406 is an abundant number, since it is smaller than the sum of its proper divisors (37149678042).

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

31373066406 is a wasteful number, since it uses less digits than its factorization.

31373066406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 502916.

The product of its (nonzero) digits is 163296, while the sum is 39.

The spelling of 31373066406 in words is "thirty-one billion, three hundred seventy-three million, sixty-six thousand, four hundred six".