31304785479 has 16 divisors (see below), whose sum is σ = 45539558400. Its totient is φ = 18970378560.

The previous prime is 31304785451. The next prime is 31304785487. The reversal of 31304785479 is 97458740313.

It is a happy number.

It is not a de Polignac number, because 31304785479 - 2³³ = 22714850887 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31304785409) by changing a digit.

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, 257322 + ... + 358920.

It is an arithmetic number, because the mean of its divisors is an integer number (2846222400).

Almost surely, 2^31304785479 is an apocalyptic number.

31304785479 is a deficient number, since it is larger than the sum of its proper divisors (14234772921).

31304785479 is a wasteful number, since it uses less digits than its factorization.

31304785479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110950.

The product of its (nonzero) digits is 2540160, while the sum is 51.

The spelling of 31304785479 in words is "thirty-one billion, three hundred four million, seven hundred eighty-five thousand, four hundred seventy-nine".