157685290079 has 2 divisors, whose sum is σ = 157685290080. Its totient is φ = 157685290078.

The previous prime is 157685290057. The next prime is 157685290099. The reversal of 157685290079 is 970092586751.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 157685290079 - 2¹² = 157685285983 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (157685290099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78842645039 + 78842645040.

It is an arithmetic number, because the mean of its divisors is an integer number (78842645040).

Almost surely, 2^157685290079 is an apocalyptic number.

157685290079 is a deficient number, since it is larger than the sum of its proper divisors (1).

157685290079 is an equidigital number, since it uses as much as digits as its factorization.

157685290079 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9525600, while the sum is 59.

The spelling of 157685290079 in words is "one hundred fifty-seven billion, six hundred eighty-five million, two hundred ninety thousand, seventy-nine".