2778055508 has 24 divisors (see below), whose sum is σ = 4969907712. Its totient is φ = 1358140064.

The previous prime is 2778055487. The next prime is 2778055627. The reversal of 2778055508 is 8055508772.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 200666 + ... + 214062.

It is an arithmetic number, because the mean of its divisors is an integer number (207079488).

Almost surely, 2^2778055508 is an apocalyptic number.

It is an amenable number.

2778055508 is a deficient number, since it is larger than the sum of its proper divisors (2191852204).

2778055508 is a wasteful number, since it uses less digits than its factorization.

2778055508 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14551 (or 14549 counting only the distinct ones).

The product of its (nonzero) digits is 784000, while the sum is 47.

The square root of 2778055508 is about 52707.2623838499. The cubic root of 2778055508 is about 1405.7679566233.

The spelling of 2778055508 in words is "two billion, seven hundred seventy-eight million, fifty-five thousand, five hundred eight".