2942478723 has 4 divisors (see below), whose sum is σ = 3923304968. Its totient is φ = 1961652480.

The previous prime is 2942478709. The next prime is 2942478743. The reversal of 2942478723 is 3278742492.

2942478723 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 2942478723 - 2⁶ = 2942478659 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2942478743) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 490413118 + ... + 490413123.

It is an arithmetic number, because the mean of its divisors is an integer number (980826242).

Almost surely, 2^2942478723 is an apocalyptic number.

2942478723 is a deficient number, since it is larger than the sum of its proper divisors (980826245).

2942478723 is an equidigital number, since it uses as much as digits as its factorization.

2942478723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 980826244.

The product of its digits is 1354752, while the sum is 48.

The square root of 2942478723 is about 54244.6192999822. The cubic root of 2942478723 is about 1432.9722395538.

The spelling of 2942478723 in words is "two billion, nine hundred forty-two million, four hundred seventy-eight thousand, seven hundred twenty-three".