157864022519 has 16 divisors (see below), whose sum is σ = 188286458880. Its totient is φ = 129410835840.

The previous prime is 157864022509. The next prime is 157864022549. The reversal of 157864022519 is 915220468751.

It is a de Polignac number, because none of the positive numbers 2^k-157864022519 is a prime.

It is a super-2 number, since 2×157864022519² (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 (157864022509) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1157567 + ... + 1286735.

It is an arithmetic number, because the mean of its divisors is an integer number (11767903680).

Almost surely, 2^157864022519 is an apocalyptic number.

157864022519 is a deficient number, since it is larger than the sum of its proper divisors (30422436361).

157864022519 is a wasteful number, since it uses less digits than its factorization.

157864022519 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136790.

The product of its (nonzero) digits is 1209600, while the sum is 50.

The spelling of 157864022519 in words is "one hundred fifty-seven billion, eight hundred sixty-four million, twenty-two thousand, five hundred nineteen".