2680749410638 has 32 divisors (see below), whose sum is σ = 4447821754656. Its totient is φ = 1203736837248.

The previous prime is 2680749410593. The next prime is 2680749410639. The reversal of 2680749410638 is 8360149470862.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2680749410639) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 13303545 + ... + 13503547.

It is an arithmetic number, because the mean of its divisors is an integer number (138994429833).

Almost surely, 2^{2680749410638} is an apocalyptic number.

2680749410638 is a deficient number, since it is larger than the sum of its proper divisors (1767072344018).

2680749410638 is a wasteful number, since it uses less digits than its factorization.

2680749410638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213988.

The product of its (nonzero) digits is 13934592, while the sum is 58.

The spelling of 2680749410638 in words is "two trillion, six hundred eighty billion, seven hundred forty-nine million, four hundred ten thousand, six hundred thirty-eight".