31290418088 has 8 divisors (see below), whose sum is σ = 58669533930. Its totient is φ = 15645209040.

The previous prime is 31290418079. The next prime is 31290418097. The reversal of 31290418088 is 88081409213.

It is an interprime number because it is at equal distance from previous prime (31290418079) and next prime (31290418097).

It can be written as a sum of positive squares in only one way, i.e., 31202396164 + 88021924 = 176642^2 + 9382^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1955651123 + ... + 1955651138.

Almost surely, 2^31290418088 is an apocalyptic number.

It is an amenable number.

31290418088 is a deficient number, since it is larger than the sum of its proper divisors (27379115842).

31290418088 is a wasteful number, since it uses less digits than its factorization.

31290418088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3911302267 (or 3911302263 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 44.

The spelling of 31290418088 in words is "thirty-one billion, two hundred ninety million, four hundred eighteen thousand, eighty-eight".