259787791952 has 20 divisors (see below), whose sum is σ = 542057220180. Its totient is φ = 119902057728.

The previous prime is 259787791933. The next prime is 259787791961. The reversal of 259787791952 is 259197787952.

It can be written as a sum of positive squares in 2 ways, for example, as 153331763776 + 106456028176 = 391576^2 + 326276^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 624489677 + ... + 624490092.

It is an arithmetic number, because the mean of its divisors is an integer number (27102861009).

Almost surely, 2^259787791952 is an apocalyptic number.

It is an amenable number.

259787791952 is an abundant number, since it is smaller than the sum of its proper divisors (282269428228).

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

259787791952 is a wasteful number, since it uses less digits than its factorization.

259787791952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1248979790 (or 1248979784 counting only the distinct ones).

The product of its digits is 200037600, while the sum is 71.

The spelling of 259787791952 in words is "two hundred fifty-nine billion, seven hundred eighty-seven million, seven hundred ninety-one thousand, nine hundred fifty-two".