2620728695 has 32 divisors (see below), whose sum is σ = 3578238720. Its totient is φ = 1828753920.

The previous prime is 2620728661. The next prime is 2620728731. The reversal of 2620728695 is 5968270262.

It is not a de Polignac number, because 2620728695 - 2¹⁸ = 2620466551 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 73805 + ... + 103385.

It is an arithmetic number, because the mean of its divisors is an integer number (111819960).

Almost surely, 2^2620728695 is an apocalyptic number.

2620728695 is a deficient number, since it is larger than the sum of its proper divisors (957510025).

2620728695 is a wasteful number, since it uses less digits than its factorization.

2620728695 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29675.

The product of its (nonzero) digits is 725760, while the sum is 47.

The square root of 2620728695 is about 51193.0531908383. The cubic root of 2620728695 is about 1378.7134784112.

The spelling of 2620728695 in words is "two billion, six hundred twenty million, seven hundred twenty-eight thousand, six hundred ninety-five".