2780027550505 has 32 divisors (see below), whose sum is σ = 3458409787008. Its totient is φ = 2144319091200.

The previous prime is 2780027550499. The next prime is 2780027550527. The reversal of 2780027550505 is 5050557200872.

It is not a de Polignac number, because 2780027550505 - 2³⁹ = 2230271736617 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2769715 + ... + 3637495.

It is an arithmetic number, because the mean of its divisors is an integer number (108075305844).

Almost surely, 2^{2780027550505} is an apocalyptic number.

It is an amenable number.

2780027550505 is a deficient number, since it is larger than the sum of its proper divisors (678382236503).

2780027550505 is a wasteful number, since it uses less digits than its factorization.

2780027550505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 868057.

The product of its (nonzero) digits is 980000, while the sum is 46.

The spelling of 2780027550505 in words is "two trillion, seven hundred eighty billion, twenty-seven million, five hundred fifty thousand, five hundred five".