2650138765140 has 96 divisors (see below), whose sum is σ = 7441838530560. Its totient is φ = 704663397376.

The previous prime is 2650138765097. The next prime is 2650138765159. The reversal of 2650138765140 is 415678310562.

It is a self number, because there is not a number n which added to its sum of digits gives 2650138765140.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 33462829 + ... + 33541931.

It is an arithmetic number, because the mean of its divisors is an integer number (77519151360).

Almost surely, 2^{2650138765140} is an apocalyptic number.

2650138765140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2650138765140 is an abundant number, since it is smaller than the sum of its proper divisors (4791699765420).

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

2650138765140 is a wasteful number, since it uses less digits than its factorization.

2650138765140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80721 (or 80719 counting only the distinct ones).

The product of its (nonzero) digits is 1209600, while the sum is 48.

The spelling of 2650138765140 in words is "two trillion, six hundred fifty billion, one hundred thirty-eight million, seven hundred sixty-five thousand, one hundred forty".