157217448959 has 4 divisors (see below), whose sum is σ = 157290473616. Its totient is φ = 157144424304.

The previous prime is 157217448943. The next prime is 157217449019. The reversal of 157217448959 is 959844712751.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 959844712751 = 749143 ⋅1281257.

It is a cyclic number.

It is not a de Polignac number, because 157217448959 - 2⁴ = 157217448943 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157217448919) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36509099 + ... + 36513404.

It is an arithmetic number, because the mean of its divisors is an integer number (39322618404).

Almost surely, 2^157217448959 is an apocalyptic number.

157217448959 is a deficient number, since it is larger than the sum of its proper divisors (73024657).

157217448959 is an equidigital number, since it uses as much as digits as its factorization.

157217448959 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73024656.

The product of its digits is 25401600, while the sum is 62.

The spelling of 157217448959 in words is "one hundred fifty-seven billion, two hundred seventeen million, four hundred forty-eight thousand, nine hundred fifty-nine".