2628913966 has 32 divisors (see below), whose sum is σ = 4774775040. Its totient is φ = 1059743616.

The previous prime is 2628913921. The next prime is 2628913981. The reversal of 2628913966 is 6693198262.

It is a super-2 number, since 2×2628913966² = 13822377281259698312, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 611661 + ... + 615943.

It is an arithmetic number, because the mean of its divisors is an integer number (149211720).

Almost surely, 2^2628913966 is an apocalyptic number.

2628913966 is a deficient number, since it is larger than the sum of its proper divisors (2145861074).

2628913966 is a wasteful number, since it uses less digits than its factorization.

2628913966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6888.

The product of its digits is 1679616, while the sum is 52.

The square root of 2628913966 is about 51272.9359994140. The cubic root of 2628913966 is about 1380.1473563154.

The spelling of 2628913966 in words is "two billion, six hundred twenty-eight million, nine hundred thirteen thousand, nine hundred sixty-six".