157863932761 has 2 divisors, whose sum is σ = 157863932762. Its totient is φ = 157863932760.

The previous prime is 157863932753. The next prime is 157863932813. The reversal of 157863932761 is 167239368751.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 144643302400 + 13220630361 = 380320^2 + 114981^2 .

It is a cyclic number.

It is not a de Polignac number, because 157863932761 - 2³ = 157863932753 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 157863932696 and 157863932705.

It is not a weakly prime, because it can be changed into another prime (157863932701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78931966380 + 78931966381.

It is an arithmetic number, because the mean of its divisors is an integer number (78931966381).

Almost surely, 2^157863932761 is an apocalyptic number.

It is an amenable number.

157863932761 is a deficient number, since it is larger than the sum of its proper divisors (1).

157863932761 is an equidigital number, since it uses as much as digits as its factorization.

157863932761 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11430720, while the sum is 58.

The spelling of 157863932761 in words is "one hundred fifty-seven billion, eight hundred sixty-three million, nine hundred thirty-two thousand, seven hundred sixty-one".