31240861795 has 16 divisors (see below), whose sum is σ = 44043062112. Its totient is φ = 20972885760.

The previous prime is 31240861793. The next prime is 31240861811. The reversal of 31240861795 is 59716804213.

It is not a de Polignac number, because 31240861795 - 2¹ = 31240861793 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31240861793) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21846042 + ... + 21847471.

It is an arithmetic number, because the mean of its divisors is an integer number (2752691382).

It is a 2-persistent number, because it is pandigital, and so is 2⋅31240861795 = 62481723590, but 3⋅31240861795 = 93722585385 is not.

Almost surely, 2^31240861795 is an apocalyptic number.

31240861795 is a deficient number, since it is larger than the sum of its proper divisors (12802200317).

31240861795 is a wasteful number, since it uses less digits than its factorization.

31240861795 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43693542.

The product of its (nonzero) digits is 362880, while the sum is 46.

The spelling of 31240861795 in words is "thirty-one billion, two hundred forty million, eight hundred sixty-one thousand, seven hundred ninety-five".