31426130561555 has 8 divisors (see below), whose sum is σ = 38242502542944. Its totient is φ = 24786807203200.

The previous prime is 31426130561491. The next prime is 31426130561561. The reversal of 31426130561555 is 55516503162413.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 31426130561555 - 2⁶ = 31426130561491 is a prime.

It is a super-3 number, since 3×31426130561555³ (a number of 41 digits) contains 333 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44262155366 + ... + 44262156075.

It is an arithmetic number, because the mean of its divisors is an integer number (4780312817868).

Almost surely, 2^{31426130561555} is an apocalyptic number.

31426130561555 is a deficient number, since it is larger than the sum of its proper divisors (6816371981389).

31426130561555 is an equidigital number, since it uses as much as digits as its factorization.

31426130561555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88524311517.

The product of its (nonzero) digits is 1620000, while the sum is 47.

The spelling of 31426130561555 in words is "thirty-one trillion, four hundred twenty-six billion, one hundred thirty million, five hundred sixty-one thousand, five hundred fifty-five".