2620896985 has 16 divisors (see below), whose sum is σ = 3610080000. Its totient is φ = 1789333056.

The previous prime is 2620896977. The next prime is 2620897001. The reversal of 2620896985 is 5896980262.

It is not a de Polignac number, because 2620896985 - 2³ = 2620896977 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 155485 + ... + 171514.

It is an arithmetic number, because the mean of its divisors is an integer number (225630000).

Almost surely, 2^2620896985 is an apocalyptic number.

It is an amenable number.

2620896985 is a deficient number, since it is larger than the sum of its proper divisors (989183015).

2620896985 is a wasteful number, since it uses less digits than its factorization.

2620896985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 327240.

The product of its (nonzero) digits is 3732480, while the sum is 55.

The square root of 2620896985 is about 51194.6968444975. The cubic root of 2620896985 is about 1378.7429891252.

The spelling of 2620896985 in words is "two billion, six hundred twenty million, eight hundred ninety-six thousand, nine hundred eighty-five".