2692779664 has 15 divisors (see below), whose sum is σ = 5217662793. Its totient is φ = 1346286048.

The previous prime is 2692779637. The next prime is 2692779721. The reversal of 2692779664 is 4669772962.

It is a happy number.

The square root of 2692779664 is 51892.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 10368400 + 2682411264 = 3220^2 + 51792^2 .

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2692779599 and 2692779608.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 201082 + ... + 214054.

Almost surely, 2^2692779664 is an apocalyptic number.

2692779664 is the 51892-nd square number.

It is an amenable number.

2692779664 is a deficient number, since it is larger than the sum of its proper divisors (2524883129).

2692779664 is an frugal number, since it uses more digits than its factorization.

2692779664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25954 (or 12975 counting only the distinct ones).

The product of its digits is 13716864, while the sum is 58.

The cubic root of 2692779664 is about 1391.2342889865.

The spelling of 2692779664 in words is "two billion, six hundred ninety-two million, seven hundred seventy-nine thousand, six hundred sixty-four".