6626994790 has 64 divisors (see below), whose sum is σ = 13204316160. Its totient is φ = 2379611520.

The previous prime is 6626994767. The next prime is 6626994809. The reversal of 6626994790 is 974996266.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 683275 + ... + 692905.

It is an arithmetic number, because the mean of its divisors is an integer number (206317440).

Almost surely, 2^6626994790 is an apocalyptic number.

6626994790 is a deficient number, since it is larger than the sum of its proper divisors (6577321370).

6626994790 is a wasteful number, since it uses less digits than its factorization.

6626994790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9797.

The product of its (nonzero) digits is 8817984, while the sum is 58.

The square root of 6626994790 is about 81406.3559557852. The cubic root of 6626994790 is about 1878.3313613706.

It can be divided in two parts, 662699 and 4790, that added together give a square (667489 = 817²).

The spelling of 6626994790 in words is "six billion, six hundred twenty-six million, nine hundred ninety-four thousand, seven hundred ninety".