70431178260757 has 2 divisors, whose sum is σ = 70431178260758. Its totient is φ = 70431178260756.

The previous prime is 70431178260671. The next prime is 70431178260769. The reversal of 70431178260757 is 75706287113407.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 70356547670161 + 74630590596 = 8387881^2 + 273186^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-70431178260757 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70431178260787) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35215589130378 + 35215589130379.

It is an arithmetic number, because the mean of its divisors is an integer number (35215589130379).

Almost surely, 2^{70431178260757} is an apocalyptic number.

It is an amenable number.

70431178260757 is a deficient number, since it is larger than the sum of its proper divisors (1).

70431178260757 is an equidigital number, since it uses as much as digits as its factorization.

70431178260757 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13829760, while the sum is 58.

The spelling of 70431178260757 in words is "seventy trillion, four hundred thirty-one billion, one hundred seventy-eight million, two hundred sixty thousand, seven hundred fifty-seven".