2620703813 has 32 divisors (see below), whose sum is σ = 3368252160. Its totient is φ = 1983098880.

The previous prime is 2620703809. The next prime is 2620703849. The reversal of 2620703813 is 3183070262.

It is a happy number.

It is not a de Polignac number, because 2620703813 - 2² = 2620703809 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2620703813.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2620708813) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 277733 + ... + 287013.

It is an arithmetic number, because the mean of its divisors is an integer number (105257880).

Almost surely, 2^2620703813 is an apocalyptic number.

It is an amenable number.

2620703813 is a deficient number, since it is larger than the sum of its proper divisors (747548347).

2620703813 is a wasteful number, since it uses less digits than its factorization.

2620703813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9437.

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 2620703813 is about 51192.8101690071. The cubic root of 2620703813 is about 1378.7091150882.

The spelling of 2620703813 in words is "two billion, six hundred twenty million, seven hundred three thousand, eight hundred thirteen".