209096527431 has 16 divisors (see below), whose sum is σ = 308679815808. Its totient is φ = 124833746400.

The previous prime is 209096527421. The next prime is 209096527439. The reversal of 209096527431 is 134725690902.

It is a de Polignac number, because none of the positive numbers 2^k-209096527431 is a prime.

It is a super-2 number, since 2×209096527431² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (209096527439) 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, 47283300 + ... + 47287721.

It is an arithmetic number, because the mean of its divisors is an integer number (19292488488).

Almost surely, 2^209096527431 is an apocalyptic number.

209096527431 is a deficient number, since it is larger than the sum of its proper divisors (99583288377).

209096527431 is a wasteful number, since it uses less digits than its factorization.

209096527431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94571102.

The product of its (nonzero) digits is 816480, while the sum is 48.

The spelling of 209096527431 in words is "two hundred nine billion, ninety-six million, five hundred twenty-seven thousand, four hundred thirty-one".