747055973957 has 2 divisors, whose sum is σ = 747055973958. Its totient is φ = 747055973956.

The previous prime is 747055973899. The next prime is 747055973971. The reversal of 747055973957 is 759379550747.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 744793164196 + 2262809761 = 863014^2 + 47569^2 .

It is an emirp because it is prime and its reverse (759379550747) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 747055973957 - 2²⁰ = 747054925381 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (747055973977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 373527986978 + 373527986979.

It is an arithmetic number, because the mean of its divisors is an integer number (373527986979).

Almost surely, 2^747055973957 is an apocalyptic number.

It is an amenable number.

747055973957 is a deficient number, since it is larger than the sum of its proper divisors (1).

747055973957 is an equidigital number, since it uses as much as digits as its factorization.

747055973957 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 291721500, while the sum is 68.

The spelling of 747055973957 in words is "seven hundred forty-seven billion, fifty-five million, nine hundred seventy-three thousand, nine hundred fifty-seven".