31194474009 has 8 divisors (see below), whose sum is σ = 41594027520. Its totient is φ = 20795618256.

The previous prime is 31194474001. The next prime is 31194474043. The reversal of 31194474009 is 90047449113.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 31194474009 - 2³ = 31194474001 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31194474001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59257 + ... + 256710.

It is an arithmetic number, because the mean of its divisors is an integer number (5199253440).

Almost surely, 2^31194474009 is an apocalyptic number.

It is an amenable number.

31194474009 is a deficient number, since it is larger than the sum of its proper divisors (10399553511).

31194474009 is a wasteful number, since it uses less digits than its factorization.

31194474009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 348879.

The product of its (nonzero) digits is 108864, while the sum is 42.

The spelling of 31194474009 in words is "thirty-one billion, one hundred ninety-four million, four hundred seventy-four thousand, nine".