2530307778 has 16 divisors (see below), whose sum is σ = 5358299040. Its totient is φ = 793822016.

The previous prime is 2530307771. The next prime is 2530307831. The reversal of 2530307778 is 8777030352.

2530307778 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (2530307771) 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, 12403368 + ... + 12403571.

It is an arithmetic number, because the mean of its divisors is an integer number (334893690).

Almost surely, 2^2530307778 is an apocalyptic number.

2530307778 is an abundant number, since it is smaller than the sum of its proper divisors (2827991262).

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

2530307778 is a wasteful number, since it uses less digits than its factorization.

2530307778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24806961.

The product of its (nonzero) digits is 246960, while the sum is 42.

The square root of 2530307778 is about 50302.1647446708. The cubic root of 2530307778 is about 1362.6713242802.

The spelling of 2530307778 in words is "two billion, five hundred thirty million, three hundred seven thousand, seven hundred seventy-eight".