157613086649 has 2 divisors, whose sum is σ = 157613086650. Its totient is φ = 157613086648.

The previous prime is 157613086637. The next prime is 157613086651. The reversal of 157613086649 is 946680316751.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 154103353600 + 3509733049 = 392560^2 + 59243^2 .

It is a cyclic number.

It is not a de Polignac number, because 157613086649 - 2³⁶ = 88893609913 is a prime.

Together with 157613086651, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 157613086594 and 157613086603.

It is not a weakly prime, because it can be changed into another prime (157613086349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78806543324 + 78806543325.

It is an arithmetic number, because the mean of its divisors is an integer number (78806543325).

Almost surely, 2^157613086649 is an apocalyptic number.

It is an amenable number.

157613086649 is a deficient number, since it is larger than the sum of its proper divisors (1).

157613086649 is an equidigital number, since it uses as much as digits as its factorization.

157613086649 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6531840, while the sum is 56.

The spelling of 157613086649 in words is "one hundred fifty-seven billion, six hundred thirteen million, eighty-six thousand, six hundred forty-nine".