259740238680 has 128 divisors (see below), whose sum is σ = 932400907200. Its totient is φ = 63936055296.

The previous prime is 259740238661. The next prime is 259740238759. The reversal of 259740238680 is 86832047952.

259740238680 is a `hidden beast` number, since 2 + 597 + 40 + 2 + 3 + 8 + 6 + 8 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9235969 + ... + 9264048.

Almost surely, 2^259740238680 is an apocalyptic number.

259740238680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

259740238680 is an abundant number, since it is smaller than the sum of its proper divisors (672660668520).

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

259740238680 is a wasteful number, since it uses less digits than its factorization.

259740238680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18500050 (or 18500040 counting only the distinct ones).

The product of its (nonzero) digits is 5806080, while the sum is 54.

The spelling of 259740238680 in words is "two hundred fifty-nine billion, seven hundred forty million, two hundred thirty-eight thousand, six hundred eighty".