2509921670 has 16 divisors (see below), whose sum is σ = 4518843120. Its totient is φ = 1003749984.

The previous prime is 2509921669. The next prime is 2509921681. The reversal of 2509921670 is 761299052.

2509921670 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25784 + ... + 75396.

It is an arithmetic number, because the mean of its divisors is an integer number (282427695).

Almost surely, 2^2509921670 is an apocalyptic number.

2509921670 is a deficient number, since it is larger than the sum of its proper divisors (2008921450).

2509921670 is a wasteful number, since it uses less digits than its factorization.

2509921670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54679.

The product of its (nonzero) digits is 68040, while the sum is 41.

The square root of 2509921670 is about 50099.1184553182. The cubic root of 2509921670 is about 1359.0018754115.

The spelling of 2509921670 in words is "two billion, five hundred nine million, nine hundred twenty-one thousand, six hundred seventy".