2780750990 has 8 divisors (see below), whose sum is σ = 5005351800. Its totient is φ = 1112300392.

The previous prime is 2780750971. The next prime is 2780751011. The reversal of 2780750990 is 990570872.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 139037540 + ... + 139037559.

It is an arithmetic number, because the mean of its divisors is an integer number (625668975).

Almost surely, 2^2780750990 is an apocalyptic number.

2780750990 is a deficient number, since it is larger than the sum of its proper divisors (2224600810).

2780750990 is a wasteful number, since it uses less digits than its factorization.

2780750990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278075106.

The product of its (nonzero) digits is 317520, while the sum is 47.

The square root of 2780750990 is about 52732.8264935609. The cubic root of 2780750990 is about 1406.2224708619. Note that the first 3 decimals are identical.

The spelling of 2780750990 in words is "two billion, seven hundred eighty million, seven hundred fifty thousand, nine hundred ninety".