209057093157 has 16 divisors (see below), whose sum is σ = 320087416320. Its totient is φ = 120032780400.

The previous prime is 209057093143. The next prime is 209057093183. The reversal of 209057093157 is 751390750902.

It is not a de Polignac number, because 209057093157 - 2²² = 209052898853 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (209057093057) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 166711569 + ... + 166712822.

It is an arithmetic number, because the mean of its divisors is an integer number (20005463520).

Almost surely, 2^209057093157 is an apocalyptic number.

It is an amenable number.

209057093157 is a deficient number, since it is larger than the sum of its proper divisors (111030323163).

209057093157 is a wasteful number, since it uses less digits than its factorization.

209057093157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 333424424.

The product of its (nonzero) digits is 595350, while the sum is 48.

The spelling of 209057093157 in words is "two hundred nine billion, fifty-seven million, ninety-three thousand, one hundred fifty-seven".