157747764127 has 2 divisors, whose sum is σ = 157747764128. Its totient is φ = 157747764126.

The previous prime is 157747764121. The next prime is 157747764179. The reversal of 157747764127 is 721467747751.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-157747764127 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (157747764121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78873882063 + 78873882064.

It is an arithmetic number, because the mean of its divisors is an integer number (78873882064).

Almost surely, 2^157747764127 is an apocalyptic number.

157747764127 is a deficient number, since it is larger than the sum of its proper divisors (1).

157747764127 is an equidigital number, since it uses as much as digits as its factorization.

157747764127 is an evil number, because the sum of its binary digits is even.

The product of its digits is 16134720, while the sum is 58.

The spelling of 157747764127 in words is "one hundred fifty-seven billion, seven hundred forty-seven million, seven hundred sixty-four thousand, one hundred twenty-seven".