157422806357 has 4 divisors (see below), whose sum is σ = 162851179020. Its totient is φ = 151994433696.

The previous prime is 157422806351. The next prime is 157422806369. The reversal of 157422806357 is 753608224751.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 753608224751 = 13567 ⋅55547153.

It can be written as a sum of positive squares in 2 ways, for example, as 128479950481 + 28942855876 = 358441^2 + 170126^2 .

It is a cyclic number.

It is not a de Polignac number, because 157422806357 - 2³⁰ = 156349064533 is a prime.

It is a super-2 number, since 2×157422806357² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157422806351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2714186288 + ... + 2714186345.

It is an arithmetic number, because the mean of its divisors is an integer number (40712794755).

Almost surely, 2^157422806357 is an apocalyptic number.

It is an amenable number.

157422806357 is a deficient number, since it is larger than the sum of its proper divisors (5428372663).

157422806357 is an equidigital number, since it uses as much as digits as its factorization.

157422806357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5428372662.

The product of its (nonzero) digits is 2822400, while the sum is 50.

The spelling of 157422806357 in words is "one hundred fifty-seven billion, four hundred twenty-two million, eight hundred six thousand, three hundred fifty-seven".