2609690772 has 48 divisors (see below), whose sum is σ = 6564281472. Its totient is φ = 802174080.

The previous prime is 2609690749. The next prime is 2609690779. The reversal of 2609690772 is 2770969062.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2609690779) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 157633 + ... + 173399.

It is an arithmetic number, because the mean of its divisors is an integer number (136755864).

Almost surely, 2^2609690772 is an apocalyptic number.

It is an amenable number.

2609690772 is an abundant number, since it is smaller than the sum of its proper divisors (3954590700).

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

2609690772 is a wasteful number, since it uses less digits than its factorization.

2609690772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16848 (or 16846 counting only the distinct ones).

The product of its (nonzero) digits is 571536, while the sum is 48.

The square root of 2609690772 is about 51085.1325925655. The cubic root of 2609690772 is about 1376.7751436649.

The spelling of 2609690772 in words is "two billion, six hundred nine million, six hundred ninety thousand, seven hundred seventy-two".