2942721279 has 16 divisors (see below), whose sum is σ = 4441845600. Its totient is φ = 1924797888.

The previous prime is 2942721217. The next prime is 2942721289. The reversal of 2942721279 is 9721272492.

It is a happy number.

2942721279 is a `hidden beast` number, since 2 + 9 + 427 + 212 + 7 + 9 = 666.

It is not a de Polignac number, because 2942721279 - 2²⁰ = 2941672703 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2942721289) 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, 1026774 + ... + 1029635.

It is an arithmetic number, because the mean of its divisors is an integer number (277615350).

Almost surely, 2^2942721279 is an apocalyptic number.

2942721279 is a deficient number, since it is larger than the sum of its proper divisors (1499124321).

2942721279 is a wasteful number, since it uses less digits than its factorization.

2942721279 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2056471 (or 2056465 counting only the distinct ones).

The product of its digits is 254016, while the sum is 45.

The square root of 2942721279 is about 54246.8550148301. The cubic root of 2942721279 is about 1433.0116129865.

The spelling of 2942721279 in words is "two billion, nine hundred forty-two million, seven hundred twenty-one thousand, two hundred seventy-nine".