157541685907 has 2 divisors, whose sum is σ = 157541685908. Its totient is φ = 157541685906.

The previous prime is 157541685853. The next prime is 157541685923. The reversal of 157541685907 is 709586145751.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-157541685907 is a prime.

It is not a weakly prime, because it can be changed into another prime (157541635907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78770842953 + 78770842954.

It is an arithmetic number, because the mean of its divisors is an integer number (78770842954).

Almost surely, 2^157541685907 is an apocalyptic number.

157541685907 is a deficient number, since it is larger than the sum of its proper divisors (1).

157541685907 is an equidigital number, since it uses as much as digits as its factorization.

157541685907 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10584000, while the sum is 58.

The spelling of 157541685907 in words is "one hundred fifty-seven billion, five hundred forty-one million, six hundred eighty-five thousand, nine hundred seven".