70397142757 has 2 divisors, whose sum is σ = 70397142758. Its totient is φ = 70397142756.

The previous prime is 70397142737. The next prime is 70397142773. The reversal of 70397142757 is 75724179307.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 49760671041 + 20636471716 = 223071^2 + 143654^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-70397142757 is a prime.

It is a super-2 number, since 2×70397142757² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70397142707) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35198571378 + 35198571379.

It is an arithmetic number, because the mean of its divisors is an integer number (35198571379).

Almost surely, 2^70397142757 is an apocalyptic number.

It is an amenable number.

70397142757 is a deficient number, since it is larger than the sum of its proper divisors (1).

70397142757 is an equidigital number, since it uses as much as digits as its factorization.

70397142757 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2593080, while the sum is 52.

The spelling of 70397142757 in words is "seventy billion, three hundred ninety-seven million, one hundred forty-two thousand, seven hundred fifty-seven".