31402857625877 has 16 divisors (see below), whose sum is σ = 32514596164800. Its totient is φ = 30293052303360.

The previous prime is 31402857625829. The next prime is 31402857625933. The reversal of 31402857625877 is 77852675820413.

It is a cyclic number.

It is not a de Polignac number, because 31402857625877 - 2¹⁶ = 31402857560341 is a prime.

It is a super-2 number, since 2×31402857625877² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31402857627877) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 238031102 + ... + 238162992.

It is an arithmetic number, because the mean of its divisors is an integer number (2032162260300).

Almost surely, 2^{31402857625877} is an apocalyptic number.

It is an amenable number.

31402857625877 is a deficient number, since it is larger than the sum of its proper divisors (1111738538923).

31402857625877 is a wasteful number, since it uses less digits than its factorization.

31402857625877 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139156.

The product of its (nonzero) digits is 158054400, while the sum is 65.

The spelling of 31402857625877 in words is "thirty-one trillion, four hundred two billion, eight hundred fifty-seven million, six hundred twenty-five thousand, eight hundred seventy-seven".