2789814989650 has 48 divisors (see below), whose sum is σ = 5588823933000. Its totient is φ = 1029973109760.

The previous prime is 2789814989641. The next prime is 2789814989657. The reversal of 2789814989650 is 569894189872.

It is a happy number.

It can be written as a sum of positive squares in 12 ways, for example, as 142070947929 + 2647744041721 = 376923^2 + 1627189^2 .

It is a Smith number, since the sum of its digits (76) coincides with the sum of the digits of its prime factors.

It is an alternating number because its digits alternate between even and odd.

It is not an unprimeable number, because it can be changed into a prime (2789814989657) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5847306 + ... + 6306394.

Almost surely, 2^{2789814989650} is an apocalyptic number.

2789814989650 is an abundant number, since it is smaller than the sum of its proper divisors (2799008943350).

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

2789814989650 is a wasteful number, since it uses less digits than its factorization.

2789814989650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 468463 (or 468458 counting only the distinct ones).

The product of its (nonzero) digits is 627056640, while the sum is 76.

The spelling of 2789814989650 in words is "two trillion, seven hundred eighty-nine billion, eight hundred fourteen million, nine hundred eighty-nine thousand, six hundred fifty".