31402011685 has 16 divisors (see below), whose sum is σ = 41118512832. Its totient is φ = 22832035200.

The previous prime is 31402011677. The next prime is 31402011709. The reversal of 31402011685 is 58611020413.

It is not a de Polignac number, because 31402011685 - 2³ = 31402011677 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 152770 + ... + 293500.

It is an arithmetic number, because the mean of its divisors is an integer number (2569907052).

Almost surely, 2^31402011685 is an apocalyptic number.

It is an amenable number.

31402011685 is a deficient number, since it is larger than the sum of its proper divisors (9716501147).

31402011685 is a wasteful number, since it uses less digits than its factorization.

31402011685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144804.

The product of its (nonzero) digits is 5760, while the sum is 31.

The spelling of 31402011685 in words is "thirty-one billion, four hundred two million, eleven thousand, six hundred eighty-five".