157015753729 has 2 divisors, whose sum is σ = 157015753730. Its totient is φ = 157015753728.

The previous prime is 157015753693. The next prime is 157015753789. The reversal of 157015753729 is 927357510751.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 94588232704 + 62427521025 = 307552^2 + 249855^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-157015753729 is a prime.

It is not a weakly prime, because it can be changed into another prime (157015753789) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78507876864 + 78507876865.

It is an arithmetic number, because the mean of its divisors is an integer number (78507876865).

Almost surely, 2^157015753729 is an apocalyptic number.

It is an amenable number.

157015753729 is a deficient number, since it is larger than the sum of its proper divisors (1).

157015753729 is an equidigital number, since it uses as much as digits as its factorization.

157015753729 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2315250, while the sum is 52.

The spelling of 157015753729 in words is "one hundred fifty-seven billion, fifteen million, seven hundred fifty-three thousand, seven hundred twenty-nine".