2691442792 has 8 divisors (see below), whose sum is σ = 5046455250. Its totient is φ = 1345721392.

The previous prime is 2691442781. The next prime is 2691442807. The reversal of 2691442792 is 2972441962.

It can be written as a sum of positive squares in only one way, i.e., 2169137476 + 522305316 = 46574^2 + 22854^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 168215167 + ... + 168215182.

Almost surely, 2^2691442792 is an apocalyptic number.

It is an amenable number.

2691442792 is a deficient number, since it is larger than the sum of its proper divisors (2355012458).

2691442792 is a wasteful number, since it uses less digits than its factorization.

2691442792 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 336430355 (or 336430351 counting only the distinct ones).

The product of its digits is 435456, while the sum is 46.

The square root of 2691442792 is about 51879.1171089100. The cubic root of 2691442792 is about 1391.0040176343.

The spelling of 2691442792 in words is "two billion, six hundred ninety-one million, four hundred forty-two thousand, seven hundred ninety-two".