233791687940 has 12 divisors (see below), whose sum is σ = 490962544716. Its totient is φ = 93516675168.

The previous prime is 233791687823. The next prime is 233791688021. The reversal of 233791687940 is 49786197332.

It can be written as a sum of positive squares in 2 ways, for example, as 150146950144 + 83644737796 = 387488^2 + 289214^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 233791687940.

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, 5844792179 + ... + 5844792218.

It is an arithmetic number, because the mean of its divisors is an integer number (40913545393).

Almost surely, 2^233791687940 is an apocalyptic number.

233791687940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

233791687940 is an abundant number, since it is smaller than the sum of its proper divisors (257170856776).

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

233791687940 is a wasteful number, since it uses less digits than its factorization.

233791687940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11689584406 (or 11689584404 counting only the distinct ones).

The product of its (nonzero) digits is 13716864, while the sum is 59.

The spelling of 233791687940 in words is "two hundred thirty-three billion, seven hundred ninety-one million, six hundred eighty-seven thousand, nine hundred forty".