31404564336 has 40 divisors (see below), whose sum is σ = 81415166080. Its totient is φ = 10431193536.

The previous prime is 31404564311. The next prime is 31404564383. The reversal of 31404564336 is 63346540413.

It is a super-3 number, since 3×31404564336³ (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 31404564294 and 31404564303.

It is a congruent number.

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, 1142356 + ... + 1169523.

It is an arithmetic number, because the mean of its divisors is an integer number (2035379152).

Almost surely, 2^31404564336 is an apocalyptic number.

It is an amenable number.

31404564336 is an abundant number, since it is smaller than the sum of its proper divisors (50010601744).

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

31404564336 is a wasteful number, since it uses less digits than its factorization.

31404564336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2312173 (or 2312167 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 39.

The spelling of 31404564336 in words is "thirty-one billion, four hundred four million, five hundred sixty-four thousand, three hundred thirty-six".