2691796442 has 4 divisors (see below), whose sum is σ = 4037694666. Its totient is φ = 1345898220.

The previous prime is 2691796427. The next prime is 2691796447. The reversal of 2691796442 is 2446971962.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 2462243641 + 229552801 = 49621^2 + 15151^2 .

It is not an unprimeable number, because it can be changed into a prime (2691796447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 672949109 + ... + 672949112.

Almost surely, 2^2691796442 is an apocalyptic number.

2691796442 is a deficient number, since it is larger than the sum of its proper divisors (1345898224).

2691796442 is a wasteful number, since it uses less digits than its factorization.

2691796442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1345898223.

The product of its digits is 1306368, while the sum is 50.

The square root of 2691796442 is about 51882.5254011406. The cubic root of 2691796442 is about 1391.0649399802.

The spelling of 2691796442 in words is "two billion, six hundred ninety-one million, seven hundred ninety-six thousand, four hundred forty-two".