71400500557 has 2 divisors, whose sum is σ = 71400500558. Its totient is φ = 71400500556.

The previous prime is 71400500537. The next prime is 71400500597. The reversal of 71400500557 is 75500500417.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 61553113801 + 9847386756 = 248099^2 + 99234^2 .

It is a cyclic number.

It is not a de Polignac number, because 71400500557 - 2¹⁹ = 71399976269 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (71400500537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35700250278 + 35700250279.

It is an arithmetic number, because the mean of its divisors is an integer number (35700250279).

Almost surely, 2^71400500557 is an apocalyptic number.

It is an amenable number.

71400500557 is a deficient number, since it is larger than the sum of its proper divisors (1).

71400500557 is an equidigital number, since it uses as much as digits as its factorization.

71400500557 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24500, while the sum is 34.

The spelling of 71400500557 in words is "seventy-one billion, four hundred million, five hundred thousand, five hundred fifty-seven".