71077877802 has 48 divisors (see below), whose sum is σ = 157173618888. Its totient is φ = 23206210560.

The previous prime is 71077877797. The next prime is 71077877837. The reversal of 71077877802 is 20877877017.

It can be written as a sum of positive squares in 4 ways, for example, as 59775849081 + 11302028721 = 244491^2 + 106311^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 502902 + ... + 628542.

Almost surely, 2^71077877802 is an apocalyptic number.

71077877802 is an abundant number, since it is smaller than the sum of its proper divisors (86095741086).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

71077877802 is a wasteful number, since it uses less digits than its factorization.

71077877802 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126295 (or 126292 counting only the distinct ones).

The product of its (nonzero) digits is 2151296, while the sum is 54.

The spelling of 71077877802 in words is "seventy-one billion, seventy-seven million, eight hundred seventy-seven thousand, eight hundred two".