2780569742 has 16 divisors (see below), whose sum is σ = 4420457712. Its totient is φ = 1307241600.

The previous prime is 2780569739. The next prime is 2780569777. The reversal of 2780569742 is 2479650872.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3173 + ... + 74640.

It is an arithmetic number, because the mean of its divisors is an integer number (276278607).

Almost surely, 2^2780569742 is an apocalyptic number.

2780569742 is a deficient number, since it is larger than the sum of its proper divisors (1639887970).

2780569742 is a wasteful number, since it uses less digits than its factorization.

2780569742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78883.

The product of its (nonzero) digits is 1693440, while the sum is 50.

The square root of 2780569742 is about 52731.1079155369. The cubic root of 2780569742 is about 1406.1919178987.

The spelling of 2780569742 in words is "two billion, seven hundred eighty million, five hundred sixty-nine thousand, seven hundred forty-two".