31484427860 has 24 divisors (see below), whose sum is σ = 66225182856. Its totient is φ = 12573221760.

The previous prime is 31484427859. The next prime is 31484427899. The reversal of 31484427860 is 6872448413.

It can be written as a sum of positive squares in 4 ways, for example, as 1884601744 + 29599826116 = 43412^2 + 172046^2 .

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1271771 + ... + 1296290.

It is an arithmetic number, because the mean of its divisors is an integer number (2759382619).

Almost surely, 2^31484427860 is an apocalyptic number.

It is an amenable number.

31484427860 is an abundant number, since it is smaller than the sum of its proper divisors (34740754996).

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

31484427860 is a wasteful number, since it uses less digits than its factorization.

31484427860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2568683 (or 2568681 counting only the distinct ones).

The product of its (nonzero) digits is 1032192, while the sum is 47.

The spelling of 31484427860 in words is "thirty-one billion, four hundred eighty-four million, four hundred twenty-seven thousand, eight hundred sixty".