157285871573 has 4 divisors (see below), whose sum is σ = 165564075360. Its totient is φ = 149007667788.

The previous prime is 157285871569. The next prime is 157285871609. The reversal of 157285871573 is 375178582751.

It is a happy number.

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, and also an emirpimes, since its reverse is a distinct semiprime: 375178582751 = 7 ⋅53596940393.

It is a cyclic number.

It is not a de Polignac number, because 157285871573 - 2² = 157285871569 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157285871773) 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, 4139101865 + ... + 4139101902.

It is an arithmetic number, because the mean of its divisors is an integer number (41391018840).

Almost surely, 2^157285871573 is an apocalyptic number.

It is an amenable number.

157285871573 is a deficient number, since it is larger than the sum of its proper divisors (8278203787).

157285871573 is an equidigital number, since it uses as much as digits as its factorization.

157285871573 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8278203786.

The product of its digits is 16464000, while the sum is 59.

The spelling of 157285871573 in words is "one hundred fifty-seven billion, two hundred eighty-five million, eight hundred seventy-one thousand, five hundred seventy-three".