2578716942 has 16 divisors (see below), whose sum is σ = 5175661440. Its totient is φ = 856534392.

The previous prime is 2578716941. The next prime is 2578716979. The reversal of 2578716942 is 2496178752.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2578716941) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 757642 + ... + 761037.

It is an arithmetic number, because the mean of its divisors is an integer number (323478840).

Almost surely, 2^2578716942 is an apocalyptic number.

2578716942 is an abundant number, since it is smaller than the sum of its proper divisors (2596944498).

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

2578716942 is a wasteful number, since it uses less digits than its factorization.

2578716942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1518967.

The product of its digits is 1693440, while the sum is 51.

The square root of 2578716942 is about 50781.0687362919. The cubic root of 2578716942 is about 1371.3065735073.

The spelling of 2578716942 in words is "two billion, five hundred seventy-eight million, seven hundred sixteen thousand, nine hundred forty-two".