6619623608 has 48 divisors (see below), whose sum is σ = 14199130680. Its totient is φ = 2875479552.

The previous prime is 6619623599. The next prime is 6619623623. The reversal of 6619623608 is 8063269166.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 80066 + ... + 140177.

Almost surely, 2^6619623608 is an apocalyptic number.

6619623608 is a gapful number since it is divisible by the number (68) formed by its first and last digit.

It is an amenable number.

6619623608 is an abundant number, since it is smaller than the sum of its proper divisors (7579507072).

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

6619623608 is a wasteful number, since it uses less digits than its factorization.

6619623608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220296 (or 220275 counting only the distinct ones).

The product of its (nonzero) digits is 559872, while the sum is 47.

The square root of 6619623608 is about 81361.0693636705. The cubic root of 6619623608 is about 1877.6346826409.

It can be divided in two parts, 661 and 9623608, that added together give a palindrome (9624269).

The spelling of 6619623608 in words is "six billion, six hundred nineteen million, six hundred twenty-three thousand, six hundred eight".