157447501070813 has 2 divisors, whose sum is σ = 157447501070814. Its totient is φ = 157447501070812.

The previous prime is 157447501070801. The next prime is 157447501070861. The reversal of 157447501070813 is 318070105744751.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 101058244989529 + 56389256081284 = 10052773^2 + 7509278^2 .

It is an emirp because it is prime and its reverse (318070105744751) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 157447501070813 - 2¹² = 157447501066717 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (157447701070813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78723750535406 + 78723750535407.

It is an arithmetic number, because the mean of its divisors is an integer number (78723750535407).

Almost surely, 2^{157447501070813} is an apocalyptic number.

It is an amenable number.

157447501070813 is a deficient number, since it is larger than the sum of its proper divisors (1).

157447501070813 is an equidigital number, since it uses as much as digits as its factorization.

157447501070813 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3292800, while the sum is 53.

The spelling of 157447501070813 in words is "one hundred fifty-seven trillion, four hundred forty-seven billion, five hundred one million, seventy thousand, eight hundred thirteen".