157290928117 has 8 divisors (see below), whose sum is σ = 162369404672. Its totient is φ = 152212737600.

The previous prime is 157290928099. The next prime is 157290928121. The reversal of 157290928117 is 711829092751.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-157290928117 is a prime.

It is a super-2 number, since 2×157290928117² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157290928127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1987693 + ... + 2065309.

It is an arithmetic number, because the mean of its divisors is an integer number (20296175584).

Almost surely, 2^157290928117 is an apocalyptic number.

It is an amenable number.

157290928117 is a deficient number, since it is larger than the sum of its proper divisors (5078476555).

157290928117 is an equidigital number, since it uses as much as digits as its factorization.

157290928117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143019.

The product of its (nonzero) digits is 635040, while the sum is 52.

The spelling of 157290928117 in words is "one hundred fifty-seven billion, two hundred ninety million, nine hundred twenty-eight thousand, one hundred seventeen".