2640402626250 has 40 divisors (see below), whose sum is σ = 6598894252896. Its totient is φ = 704107366000.

The previous prime is 2640402626243. The next prime is 2640402626261. The reversal of 2640402626250 is 526262040462.

It is a junction number, because it is equal to n+sod(n) for n = 2640402626199 and 2640402626208.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 352049934 + ... + 352057433.

Almost surely, 2^{2640402626250} is an apocalyptic number.

2640402626250 is an abundant number, since it is smaller than the sum of its proper divisors (3958491626646).

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

2640402626250 is an equidigital number, since it uses as much as digits as its factorization.

2640402626250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 704107392 (or 704107377 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 39.

The spelling of 2640402626250 in words is "two trillion, six hundred forty billion, four hundred two million, six hundred twenty-six thousand, two hundred fifty".