6887720622 has 64 divisors (see below), whose sum is σ = 14603037696. Its totient is φ = 2161420800.

The previous prime is 6887720597. The next prime is 6887720639. The reversal of 6887720622 is 2260277886.

It is a happy number.

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, 2457622 + ... + 2460422.

It is an arithmetic number, because the mean of its divisors is an integer number (228172464).

Almost surely, 2^6887720622 is an apocalyptic number.

6887720622 is an abundant number, since it is smaller than the sum of its proper divisors (7715317074).

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

6887720622 is a wasteful number, since it uses less digits than its factorization.

6887720622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3105.

The product of its (nonzero) digits is 903168, while the sum is 48.

The square root of 6887720622 is about 82992.2925457539. The cubic root of 6887720622 is about 1902.6482574149.

The spelling of 6887720622 in words is "six billion, eight hundred eighty-seven million, seven hundred twenty thousand, six hundred twenty-two".