242787538928 has 20 divisors (see below), whose sum is σ = 513164571288. Its totient is φ = 110357972160.

The previous prime is 242787538927. The next prime is 242787538951. The reversal of 242787538928 is 829835787242.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242787538927) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 689737151 + ... + 689737502.

Almost surely, 2^242787538928 is an apocalyptic number.

It is an amenable number.

242787538928 is an abundant number, since it is smaller than the sum of its proper divisors (270377032360).

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

242787538928 is a wasteful number, since it uses less digits than its factorization.

242787538928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1379474672 (or 1379474666 counting only the distinct ones).

The product of its digits is 108380160, while the sum is 65.

The spelling of 242787538928 in words is "two hundred forty-two billion, seven hundred eighty-seven million, five hundred thirty-eight thousand, nine hundred twenty-eight".