71925695893 has 2 divisors, whose sum is σ = 71925695894. Its totient is φ = 71925695892.

The previous prime is 71925695857. The next prime is 71925695923. The reversal of 71925695893 is 39859652917.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 67139546769 + 4786149124 = 259113^2 + 69182^2 .

It is a cyclic number.

It is not a de Polignac number, because 71925695893 - 2²¹ = 71923598741 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (71925695833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35962847946 + 35962847947.

It is an arithmetic number, because the mean of its divisors is an integer number (35962847947).

Almost surely, 2^71925695893 is an apocalyptic number.

It is an amenable number.

71925695893 is a deficient number, since it is larger than the sum of its proper divisors (1).

71925695893 is an equidigital number, since it uses as much as digits as its factorization.

71925695893 is an evil number, because the sum of its binary digits is even.

The product of its digits is 36741600, while the sum is 64.

The spelling of 71925695893 in words is "seventy-one billion, nine hundred twenty-five million, six hundred ninety-five thousand, eight hundred ninety-three".