157217441457 has 4 divisors (see below), whose sum is σ = 209623255280. Its totient is φ = 104811627636.

The previous prime is 157217441453. The next prime is 157217441483. The reversal of 157217441457 is 754144712751.

157217441457 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 157217441457 - 2² = 157217441453 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (157217441453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26202906907 + ... + 26202906912.

It is an arithmetic number, because the mean of its divisors is an integer number (52405813820).

Almost surely, 2^157217441457 is an apocalyptic number.

It is an amenable number.

157217441457 is a deficient number, since it is larger than the sum of its proper divisors (52405813823).

157217441457 is an equidigital number, since it uses as much as digits as its factorization.

157217441457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52405813822.

The product of its digits is 1097600, while the sum is 48.

The spelling of 157217441457 in words is "one hundred fifty-seven billion, two hundred seventeen million, four hundred forty-one thousand, four hundred fifty-seven".