157009669785 has 40 divisors (see below), whose sum is σ = 281900874816. Its totient is φ = 83605646880.

The previous prime is 157009669753. The next prime is 157009669799. The reversal of 157009669785 is 587966900751.

It is not a de Polignac number, because 157009669785 - 2⁵ = 157009669753 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 51639 + ... + 562748.

Almost surely, 2^157009669785 is an apocalyptic number.

157009669785 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

157009669785 is a deficient number, since it is larger than the sum of its proper divisors (124891205031).

157009669785 is an equidigital number, since it uses as much as digits as its factorization.

157009669785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 615035 (or 615026 counting only the distinct ones).

The product of its (nonzero) digits is 28576800, while the sum is 63.

The spelling of 157009669785 in words is "one hundred fifty-seven billion, nine million, six hundred sixty-nine thousand, seven hundred eighty-five".