2780555305049 has 8 divisors (see below), whose sum is σ = 2781650519712. Its totient is φ = 2779460311680.

The previous prime is 2780555304997. The next prime is 2780555305103. The reversal of 2780555305049 is 9405035550872.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2780555305049 is a prime.

It is a super-2 number, since 2×2780555305049² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2780555005049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27763634 + ... + 27863604.

It is an arithmetic number, because the mean of its divisors is an integer number (347706314964).

Almost surely, 2^{2780555305049} is an apocalyptic number.

It is an amenable number.

2780555305049 is a deficient number, since it is larger than the sum of its proper divisors (1095214663).

2780555305049 is an equidigital number, since it uses as much as digits as its factorization.

2780555305049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110647.

The product of its (nonzero) digits is 7560000, while the sum is 53.

The spelling of 2780555305049 in words is "two trillion, seven hundred eighty billion, five hundred fifty-five million, three hundred five thousand, forty-nine".