249780010126688 has 48 divisors (see below), whose sum is σ = 510547946968080. Its totient is φ = 120148133715456.

The previous prime is 249780010126597. The next prime is 249780010126733. The reversal of 249780010126688 is 886621010087942.

It is a self number, because there is not a number n which added to its sum of digits gives 249780010126688.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 485590406 + ... + 486104517.

It is an arithmetic number, because the mean of its divisors is an integer number (10636415561835).

Almost surely, 2^{249780010126688} is an apocalyptic number.

It is an amenable number.

249780010126688 is an abundant number, since it is smaller than the sum of its proper divisors (260767936841392).

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

249780010126688 is a wasteful number, since it uses less digits than its factorization.

249780010126688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 971695239 (or 971695231 counting only the distinct ones).

The product of its (nonzero) digits is 18579456, while the sum is 62.

The spelling of 249780010126688 in words is "two hundred forty-nine trillion, seven hundred eighty billion, ten million, one hundred twenty-six thousand, six hundred eighty-eight".