2776388890 has 32 divisors (see below), whose sum is σ = 5470488576. Its totient is φ = 1006138560.

The previous prime is 2776388887. The next prime is 2776388891. The reversal of 2776388890 is 988836772.

2776388890 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 (2776388891) 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, 10842 + ... + 75301.

It is an arithmetic number, because the mean of its divisors is an integer number (170952768).

Almost surely, 2^2776388890 is an apocalyptic number.

2776388890 is a deficient number, since it is larger than the sum of its proper divisors (2694099686).

2776388890 is a wasteful number, since it uses less digits than its factorization.

2776388890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86454.

The product of its (nonzero) digits is 8128512, while the sum is 58.

The square root of 2776388890 is about 52691.4498756677. The cubic root of 2776388890 is about 1405.4867831136.

The spelling of 2776388890 in words is "two billion, seven hundred seventy-six million, three hundred eighty-eight thousand, eight hundred ninety".