291942642299 has 16 divisors (see below), whose sum is σ = 364313552640. Its totient is φ = 227279576160.

The previous prime is 291942642283. The next prime is 291942642317. The reversal of 291942642299 is 992246249192.

It is a happy number.

It is not a de Polignac number, because 291942642299 - 2⁴ = 291942642283 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (291942648299) 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, 1650269 + ... + 1818590.

It is an arithmetic number, because the mean of its divisors is an integer number (22769597040).

Almost surely, 2^291942642299 is an apocalyptic number.

291942642299 is a deficient number, since it is larger than the sum of its proper divisors (72370910341).

291942642299 is a wasteful number, since it uses less digits than its factorization.

291942642299 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3469970.

The product of its digits is 10077696, while the sum is 59.

The spelling of 291942642299 in words is "two hundred ninety-one billion, nine hundred forty-two million, six hundred forty-two thousand, two hundred ninety-nine".