231827061528 has 80 divisors (see below), whose sum is σ = 649405591560. Its totient is φ = 77266742400.

The previous prime is 231827061527. The next prime is 231827061533. The reversal of 231827061528 is 825160728132.

231827061528 is a `hidden beast` number, since 2 + 3 + 1 + 8 + 2 + 7 + 0 + 615 + 28 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231827061523) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 7943523 + ... + 7972653.

Almost surely, 2^231827061528 is an apocalyptic number.

It is an amenable number.

231827061528 is an abundant number, since it is smaller than the sum of its proper divisors (417578530032).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

231827061528 is a wasteful number, since it uses less digits than its factorization.

231827061528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41430 (or 41417 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 45.

The spelling of 231827061528 in words is "two hundred thirty-one billion, eight hundred twenty-seven million, sixty-one thousand, five hundred twenty-eight".