2939121823 has 12 divisors (see below), whose sum is σ = 3420642960. Its totient is φ = 2514754880.

The previous prime is 2939121793. The next prime is 2939121847. The reversal of 2939121823 is 3281219392.

It is not a de Polignac number, because 2939121823 - 2⁵ = 2939121791 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2939121883) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 712363 + ... + 716476.

It is an arithmetic number, because the mean of its divisors is an integer number (285053580).

Almost surely, 2^2939121823 is an apocalyptic number.

2939121823 is a deficient number, since it is larger than the sum of its proper divisors (481521137).

2939121823 is a wasteful number, since it uses less digits than its factorization.

2939121823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1428878 (or 1428867 counting only the distinct ones).

The product of its digits is 46656, while the sum is 40.

The square root of 2939121823 is about 54213.6682304380. The cubic root of 2939121823 is about 1432.4271010947.

The spelling of 2939121823 in words is "two billion, nine hundred thirty-nine million, one hundred twenty-one thousand, eight hundred twenty-three".