2311878942 has 32 divisors (see below), whose sum is σ = 5139106560. Its totient is φ = 770386680.

The previous prime is 2311878937. The next prime is 2311878949. The reversal of 2311878942 is 2498781132.

It is a happy number.

2311878942 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2311878949) 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, 289333 + ... + 297215.

It is an arithmetic number, because the mean of its divisors is an integer number (160597080).

Almost surely, 2^2311878942 is an apocalyptic number.

2311878942 is an abundant number, since it is smaller than the sum of its proper divisors (2827227618).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2311878942 is a wasteful number, since it uses less digits than its factorization.

2311878942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13325 (or 13319 counting only the distinct ones).

The product of its digits is 193536, while the sum is 45.

The square root of 2311878942 is about 48082.0022669606. The cubic root of 2311878942 is about 1322.2747244642.

The spelling of 2311878942 in words is "two billion, three hundred eleven million, eight hundred seventy-eight thousand, nine hundred forty-two".