747385931161 has 2 divisors, whose sum is σ = 747385931162. Its totient is φ = 747385931160.

The previous prime is 747385931147. The next prime is 747385931177. The reversal of 747385931161 is 161139583747.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 526444569225 + 220941361936 = 725565^2 + 470044^2 .

It is a cyclic number.

It is not a de Polignac number, because 747385931161 - 2⁵ = 747385931129 is a prime.

It is not a weakly prime, because it can be changed into another prime (747385931561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 373692965580 + 373692965581.

It is an arithmetic number, because the mean of its divisors is an integer number (373692965581).

Almost surely, 2^747385931161 is an apocalyptic number.

It is an amenable number.

747385931161 is a deficient number, since it is larger than the sum of its proper divisors (1).

747385931161 is an equidigital number, since it uses as much as digits as its factorization.

747385931161 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3810240, while the sum is 55.

The spelling of 747385931161 in words is "seven hundred forty-seven billion, three hundred eighty-five million, nine hundred thirty-one thousand, one hundred sixty-one".