71570202057 has 12 divisors (see below), whose sum is σ = 104922154480. Its totient is φ = 47001326328.

The previous prime is 71570202043. The next prime is 71570202059. The reversal of 71570202057 is 75020207517.

It is not a de Polignac number, because 71570202057 - 2¹⁹ = 71569677769 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71570202059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 59344507 + ... + 59345712.

Almost surely, 2^71570202057 is an apocalyptic number.

It is an amenable number.

71570202057 is a deficient number, since it is larger than the sum of its proper divisors (33351952423).

71570202057 is a wasteful number, since it uses less digits than its factorization.

71570202057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118690292 (or 118690289 counting only the distinct ones).

The product of its (nonzero) digits is 34300, while the sum is 36.

The spelling of 71570202057 in words is "seventy-one billion, five hundred seventy million, two hundred two thousand, fifty-seven".