31451425645 has 16 divisors (see below), whose sum is σ = 38217000960. Its totient is φ = 24845040000.

The previous prime is 31451425633. The next prime is 31451425661. The reversal of 31451425645 is 54652415413.

It is not a de Polignac number, because 31451425645 - 2⁷ = 31451425517 is a prime.

It is a super-3 number, since 3×31451425645³ (a number of 32 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31451425598 and 31451425607.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 287140 + ... + 381250.

It is an arithmetic number, because the mean of its divisors is an integer number (2388562560).

Almost surely, 2^31451425645 is an apocalyptic number.

It is an amenable number.

31451425645 is a deficient number, since it is larger than the sum of its proper divisors (6765575315).

31451425645 is an equidigital number, since it uses as much as digits as its factorization.

31451425645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94956.

The product of its digits is 288000, while the sum is 40.

The spelling of 31451425645 in words is "thirty-one billion, four hundred fifty-one million, four hundred twenty-five thousand, six hundred forty-five".