31139666070 has 16 divisors (see below), whose sum is σ = 74735198640. Its totient is φ = 8303910944.

The previous prime is 31139666039. The next prime is 31139666099. The reversal of 31139666070 is 7066693113.

It is a super-2 number, since 2×31139666070² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 518994405 + ... + 518994464.

It is an arithmetic number, because the mean of its divisors is an integer number (4670949915).

Almost surely, 2^31139666070 is an apocalyptic number.

31139666070 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

31139666070 is an abundant number, since it is smaller than the sum of its proper divisors (43595532570).

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

31139666070 is a wasteful number, since it uses less digits than its factorization.

31139666070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1037988879.

The product of its (nonzero) digits is 122472, while the sum is 42.

The spelling of 31139666070 in words is "thirty-one billion, one hundred thirty-nine million, six hundred sixty-six thousand, seventy".