2770138782 has 24 divisors (see below), whose sum is σ = 6317861160. Its totient is φ = 874780560.

The previous prime is 2770138751. The next prime is 2770138807. The reversal of 2770138782 is 2878310772.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4049569 + ... + 4050252.

It is an arithmetic number, because the mean of its divisors is an integer number (263244215).

Almost surely, 2^2770138782 is an apocalyptic number.

2770138782 is an abundant number, since it is smaller than the sum of its proper divisors (3547722378).

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

2770138782 is a wasteful number, since it uses less digits than its factorization.

2770138782 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8099848 (or 8099845 counting only the distinct ones).

The product of its (nonzero) digits is 263424, while the sum is 45.

The square root of 2770138782 is about 52632.1079000262. The cubic root of 2770138782 is about 1404.4313300852.

The spelling of 2770138782 in words is "two billion, seven hundred seventy million, one hundred thirty-eight thousand, seven hundred eighty-two".