71087875922 has 54 divisors (see below), whose sum is σ = 129779490519. Its totient is φ = 29116727640.

The previous prime is 71087875913. The next prime is 71087875933. The reversal of 71087875922 is 22957878017.

It can be written as a sum of positive squares in only one way, i.e., 35543937961 + 35543937961 = 188531^2 + 188531^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=188531.

It is a super-2 number, since 2×71087875922² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 60706397 + ... + 60707567.

Almost surely, 2^71087875922 is an apocalyptic number.

71087875922 is a deficient number, since it is larger than the sum of its proper divisors (58691614597).

71087875922 is an equidigital number, since it uses as much as digits as its factorization.

71087875922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2404 (or 1203 counting only the distinct ones).

The product of its (nonzero) digits is 3951360, while the sum is 56.

The spelling of 71087875922 in words is "seventy-one billion, eighty-seven million, eight hundred seventy-five thousand, nine hundred twenty-two".