2621395968 has 44 divisors (see below), whose sum is σ = 6986984160. Its totient is φ = 873797632.

The previous prime is 2621395957. The next prime is 2621396023. The reversal of 2621395968 is 8695931262.

It is a self number, because there is not a number n which added to its sum of digits gives 2621395968.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 423588 + ... + 429731.

Almost surely, 2^2621395968 is an apocalyptic number.

It is an amenable number.

2621395968 is an abundant number, since it is smaller than the sum of its proper divisors (4365588192).

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

2621395968 is an equidigital number, since it uses as much as digits as its factorization.

2621395968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 853342 (or 853324 counting only the distinct ones).

The product of its digits is 1399680, while the sum is 51.

The square root of 2621395968 is about 51199.5699981943. The cubic root of 2621395968 is about 1378.8304815195.

The spelling of 2621395968 in words is "two billion, six hundred twenty-one million, three hundred ninety-five thousand, nine hundred sixty-eight".