31752428085731 has 2 divisors, whose sum is σ = 31752428085732. Its totient is φ = 31752428085730.

The previous prime is 31752428085713. The next prime is 31752428085881. The reversal of 31752428085731 is 13758082425713.

It is a happy number.

Together with previous prime (31752428085713) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 31752428085731 - 2²² = 31752423891427 is a prime.

It is a super-2 number, since 2×31752428085731² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (31752428082731) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15876214042865 + 15876214042866.

It is an arithmetic number, because the mean of its divisors is an integer number (15876214042866).

Almost surely, 2^{31752428085731} is an apocalyptic number.

31752428085731 is a deficient number, since it is larger than the sum of its proper divisors (1).

31752428085731 is an equidigital number, since it uses as much as digits as its factorization.

31752428085731 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11289600, while the sum is 56.

The spelling of 31752428085731 in words is "thirty-one trillion, seven hundred fifty-two billion, four hundred twenty-eight million, eighty-five thousand, seven hundred thirty-one".