31479350320 has 60 divisors (see below), whose sum is σ = 80447976000. Its totient is φ = 11447032960.

The previous prime is 31479350263. The next prime is 31479350327. The reversal of 31479350320 is 2305397413.

It is a happy number.

It is a super-3 number, since 3×31479350320³ (a number of 32 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 31479350320.

It is not an unprimeable number, because it can be changed into a prime (31479350327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1616320 + ... + 1635679.

It is an arithmetic number, because the mean of its divisors is an integer number (1340799600).

Almost surely, 2^31479350320 is an apocalyptic number.

It is an amenable number.

31479350320 is an abundant number, since it is smaller than the sum of its proper divisors (48968625680).

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

31479350320 is a wasteful number, since it uses less digits than its factorization.

31479350320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3252034 (or 3252017 counting only the distinct ones).

The product of its (nonzero) digits is 68040, while the sum is 37.

The spelling of 31479350320 in words is "thirty-one billion, four hundred seventy-nine million, three hundred fifty thousand, three hundred twenty".