2780252776 has 16 divisors (see below), whose sum is σ = 5957684640. Its totient is φ = 1191536880.

The previous prime is 2780252773. The next prime is 2780252789. The reversal of 2780252776 is 6772520872.

2780252776 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 (2780252773) 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, 24823630 + ... + 24823741.

It is an arithmetic number, because the mean of its divisors is an integer number (372355290).

Almost surely, 2^2780252776 is an apocalyptic number.

It is an amenable number.

2780252776 is an abundant number, since it is smaller than the sum of its proper divisors (3177431864).

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

2780252776 is a wasteful number, since it uses less digits than its factorization.

2780252776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49647384 (or 49647380 counting only the distinct ones).

The product of its (nonzero) digits is 658560, while the sum is 46.

The square root of 2780252776 is about 52728.1023364202. The cubic root of 2780252776 is about 1406.1384837700.

The spelling of 2780252776 in words is "two billion, seven hundred eighty million, two hundred fifty-two thousand, seven hundred seventy-six".