2780280080837 has 6 divisors (see below), whose sum is σ = 3234203359398. Its totient is φ = 2383097212104.

The previous prime is 2780280080833. The next prime is 2780280080867. The reversal of 2780280080837 is 7380800820872.

2780280080837 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 1610668112641 + 1169611968196 = 1269121^2 + 1081486^2 .

It is not a de Polignac number, because 2780280080837 - 2² = 2780280080833 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2780280080833) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 28370204858 + ... + 28370204955.

It is an arithmetic number, because the mean of its divisors is an integer number (539033893233).

Almost surely, 2^{2780280080837} is an apocalyptic number.

It is an amenable number.

2780280080837 is a deficient number, since it is larger than the sum of its proper divisors (453923278561).

2780280080837 is an equidigital number, since it uses as much as digits as its factorization.

2780280080837 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56740409827 (or 56740409820 counting only the distinct ones).

The product of its (nonzero) digits is 2408448, while the sum is 53.

The spelling of 2780280080837 in words is "two trillion, seven hundred eighty billion, two hundred eighty million, eighty thousand, eight hundred thirty-seven".