2780749370 has 64 divisors (see below), whose sum is σ = 6161633280. Its totient is φ = 882197568.

The previous prime is 2780749369. The next prime is 2780749373. The reversal of 2780749370 is 739470872.

It is not an unprimeable number, because it can be changed into a prime (2780749373) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 32879 + ... + 81501.

It is an arithmetic number, because the mean of its divisors is an integer number (96275520).

Almost surely, 2^2780749370 is an apocalyptic number.

2780749370 is an abundant number, since it is smaller than the sum of its proper divisors (3380883910).

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

2780749370 is a wasteful number, since it uses less digits than its factorization.

2780749370 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48699.

The product of its (nonzero) digits is 592704, while the sum is 47.

The square root of 2780749370 is about 52732.8111331076. The cubic root of 2780749370 is about 1406.2221977845. Note that the first 3 decimals are identical.

It can be divided in two parts, 27807 and 49370, that added together give a palindrome (77177).

The spelling of 2780749370 in words is "two billion, seven hundred eighty million, seven hundred forty-nine thousand, three hundred seventy".