157579821953 has 8 divisors (see below), whose sum is σ = 162668563200. Its totient is φ = 152491425840.

The previous prime is 157579821907. The next prime is 157579821967. The reversal of 157579821953 is 359128975751.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 157579821953 - 2¹⁰ = 157579820929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (157579821983) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1101251 + ... + 1236087.

It is an arithmetic number, because the mean of its divisors is an integer number (20333570400).

Almost surely, 2^157579821953 is an apocalyptic number.

It is an amenable number.

157579821953 is a deficient number, since it is larger than the sum of its proper divisors (5088741247).

157579821953 is a wasteful number, since it uses less digits than its factorization.

157579821953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172567.

The product of its digits is 23814000, while the sum is 62.

The spelling of 157579821953 in words is "one hundred fifty-seven billion, five hundred seventy-nine million, eight hundred twenty-one thousand, nine hundred fifty-three".