2078994805290 has 72 divisors (see below), whose sum is σ = 5853170033100. Its totient is φ = 511752563712.

The previous prime is 2078994805259. The next prime is 2078994805319. The reversal of 2078994805290 is 925084998702.

It is a happy number.

2078994805290 is a `hidden beast` number, since 20 + 7 + 8 + 9 + 9 + 4 + 80 + 529 + 0 = 666.

It can be written as a sum of positive squares in 6 ways, for example, as 329784884361 + 1749209920929 = 574269^2 + 1322577^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 68327815 + ... + 68358234.

Almost surely, 2^{2078994805290} is an apocalyptic number.

2078994805290 is an abundant number, since it is smaller than the sum of its proper divisors (3774175227810).

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

2078994805290 is a wasteful number, since it uses less digits than its factorization.

2078994805290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136686088 (or 136686072 counting only the distinct ones).

The product of its (nonzero) digits is 26127360, while the sum is 63.

The spelling of 2078994805290 in words is "two trillion, seventy-eight billion, nine hundred ninety-four million, eight hundred five thousand, two hundred ninety".