157863932873 has 2 divisors, whose sum is σ = 157863932874. Its totient is φ = 157863932872.

The previous prime is 157863932857. The next prime is 157863932881. The reversal of 157863932873 is 378239368751.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 93628044169 + 64235888704 = 305987^2 + 253448^2 .

It is an emirp because it is prime and its reverse (378239368751) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 157863932873 - 2⁴ = 157863932857 is a prime.

It is not a weakly prime, because it can be changed into another prime (157863932813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78931966436 + 78931966437.

It is an arithmetic number, because the mean of its divisors is an integer number (78931966437).

Almost surely, 2^157863932873 is an apocalyptic number.

It is an amenable number.

157863932873 is a deficient number, since it is larger than the sum of its proper divisors (1).

157863932873 is an equidigital number, since it uses as much as digits as its factorization.

157863932873 is an evil number, because the sum of its binary digits is even.

The product of its digits is 45722880, while the sum is 62.

The spelling of 157863932873 in words is "one hundred fifty-seven billion, eight hundred sixty-three million, nine hundred thirty-two thousand, eight hundred seventy-three".