31940470735 has 32 divisors (see below), whose sum is σ = 40318553088. Its totient is φ = 24268688640.

The previous prime is 31940470721. The next prime is 31940470739. The reversal of 31940470735 is 53707404913.

It is not a de Polignac number, because 31940470735 - 2⁵ = 31940470703 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31940470691 and 31940470700.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31940470739) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1100014 + ... + 1128676.

It is an arithmetic number, because the mean of its divisors is an integer number (1259954784).

Almost surely, 2^31940470735 is an apocalyptic number.

31940470735 is a deficient number, since it is larger than the sum of its proper divisors (8378082353).

31940470735 is a wasteful number, since it uses less digits than its factorization.

31940470735 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28855.

The product of its (nonzero) digits is 317520, while the sum is 43.

The spelling of 31940470735 in words is "thirty-one billion, nine hundred forty million, four hundred seventy thousand, seven hundred thirty-five".