31406936973 has 16 divisors (see below), whose sum is σ = 43414128576. Its totient is φ = 20181157760.

The previous prime is 31406936963. The next prime is 31406936999. The reversal of 31406936973 is 37963960413.

It is not a de Polignac number, because 31406936973 - 2⁵ = 31406936941 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31406936963) 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, 1527990 + ... + 1548407.

It is an arithmetic number, because the mean of its divisors is an integer number (2713383036).

Almost surely, 2^31406936973 is an apocalyptic number.

It is an amenable number.

31406936973 is a deficient number, since it is larger than the sum of its proper divisors (12007191603).

31406936973 is a wasteful number, since it uses less digits than its factorization.

31406936973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3076524.

The product of its (nonzero) digits is 2204496, while the sum is 51.

The spelling of 31406936973 in words is "thirty-one billion, four hundred six million, nine hundred thirty-six thousand, nine hundred seventy-three".