157156254427 has 2 divisors, whose sum is σ = 157156254428. Its totient is φ = 157156254426.

The previous prime is 157156254403. The next prime is 157156254433. The reversal of 157156254427 is 724452651751.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 157156254427 - 2¹⁹ = 157155730139 is a prime.

It is not a weakly prime, because it can be changed into another prime (157156254727) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78578127213 + 78578127214.

It is an arithmetic number, because the mean of its divisors is an integer number (78578127214).

Almost surely, 2^157156254427 is an apocalyptic number.

157156254427 is a deficient number, since it is larger than the sum of its proper divisors (1).

157156254427 is an equidigital number, since it uses as much as digits as its factorization.

157156254427 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2352000, while the sum is 49.

The spelling of 157156254427 in words is "one hundred fifty-seven billion, one hundred fifty-six million, two hundred fifty-four thousand, four hundred twenty-seven".