31385750070 has 64 divisors (see below), whose sum is σ = 75969653760. Its totient is φ = 8298302208.

The previous prime is 31385750029. The next prime is 31385750083. The reversal of 31385750070 is 7005758313.

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 31 ways as a sum of consecutive naturals, for example, 1661217 + ... + 1680003.

It is an arithmetic number, because the mean of its divisors is an integer number (1187025840).

Almost surely, 2^31385750070 is an apocalyptic number.

31385750070 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

31385750070 is an abundant number, since it is smaller than the sum of its proper divisors (44583903690).

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

31385750070 is a wasteful number, since it uses less digits than its factorization.

31385750070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19269.

The product of its (nonzero) digits is 88200, while the sum is 39.

The spelling of 31385750070 in words is "thirty-one billion, three hundred eighty-five million, seven hundred fifty thousand, seventy".