157609939514 has 4 divisors (see below), whose sum is σ = 236414909274. Its totient is φ = 78804969756.

The previous prime is 157609939511. The next prime is 157609939517. The reversal of 157609939514 is 415939906751.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 415939906751 = 389 ⋅1069254259.

It is an interprime number because it is at equal distance from previous prime (157609939511) and next prime (157609939517).

It can be written as a sum of positive squares in only one way, i.e., 157000590289 + 609349225 = 396233^2 + 24685^2 .

It is not an unprimeable number, because it can be changed into a prime (157609939511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39402484877 + ... + 39402484880.

Almost surely, 2^157609939514 is an apocalyptic number.

157609939514 is a deficient number, since it is larger than the sum of its proper divisors (78804969760).

157609939514 is an equidigital number, since it uses as much as digits as its factorization.

157609939514 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78804969759.

The product of its (nonzero) digits is 9185400, while the sum is 59.

The spelling of 157609939514 in words is "one hundred fifty-seven billion, six hundred nine million, nine hundred thirty-nine thousand, five hundred fourteen".