31335380394 has 16 divisors (see below), whose sum is σ = 62694594432. Its totient is φ = 10441154528.

The previous prime is 31335380369. The next prime is 31335380449. The reversal of 31335380394 is 49308353313.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 975954 + ... + 1007549.

It is an arithmetic number, because the mean of its divisors is an integer number (3918412152).

Almost surely, 2^31335380394 is an apocalyptic number.

31335380394 is an abundant number, since it is smaller than the sum of its proper divisors (31359214038).

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

31335380394 is a wasteful number, since it uses less digits than its factorization.

31335380394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1986141.

The product of its (nonzero) digits is 349920, while the sum is 42.

The spelling of 31335380394 in words is "thirty-one billion, three hundred thirty-five million, three hundred eighty thousand, three hundred ninety-four".