157981458573 has 12 divisors (see below), whose sum is σ = 235556583808. Its totient is φ = 101923521480.

The previous prime is 157981458559. The next prime is 157981458581. The reversal of 157981458573 is 375854189751.

It is a happy number.

157981458573 is a `hidden beast` number, since 1 + 5 + 7 + 9 + 8 + 1 + 4 + 58 + 573 = 666.

It is not a de Polignac number, because 157981458573 - 2²⁰ = 157980409997 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 157981458573.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157981458553) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 283120615 + ... + 283121172.

Almost surely, 2^157981458573 is an apocalyptic number.

It is an amenable number.

157981458573 is a deficient number, since it is larger than the sum of its proper divisors (77575125235).

157981458573 is a wasteful number, since it uses less digits than its factorization.

157981458573 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 566241824 (or 566241821 counting only the distinct ones).

The product of its digits is 42336000, while the sum is 63.

The spelling of 157981458573 in words is "one hundred fifty-seven billion, nine hundred eighty-one million, four hundred fifty-eight thousand, five hundred seventy-three".