157395777349 has 2 divisors, whose sum is σ = 157395777350. Its totient is φ = 157395777348.

The previous prime is 157395777337. The next prime is 157395777379. The reversal of 157395777349 is 943777593751.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 122433509025 + 34962268324 = 349905^2 + 186982^2 .

It is a cyclic number.

It is not a de Polignac number, because 157395777349 - 2⁷ = 157395777221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (157395777379) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78697888674 + 78697888675.

It is an arithmetic number, because the mean of its divisors is an integer number (78697888675).

Almost surely, 2^157395777349 is an apocalyptic number.

It is an amenable number.

157395777349 is a deficient number, since it is larger than the sum of its proper divisors (1).

157395777349 is an equidigital number, since it uses as much as digits as its factorization.

157395777349 is an evil number, because the sum of its binary digits is even.

The product of its digits is 175032900, while the sum is 67.

The spelling of 157395777349 in words is "one hundred fifty-seven billion, three hundred ninety-five million, seven hundred seventy-seven thousand, three hundred forty-nine".