2278552008777 has 12 divisors (see below), whose sum is σ = 3339365478960. Its totient is φ = 1380940611160.

The previous prime is 2278552008703. The next prime is 2278552008781. The reversal of 2278552008777 is 7778002558722.

It is a happy number.

It is not a de Polignac number, because 2278552008777 - 2⁸ = 2278552008521 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2278552008777.

It is not an unprimeable number, because it can be changed into a prime (2278552008077) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3138501027 + ... + 3138501752.

It is an arithmetic number, because the mean of its divisors is an integer number (278280456580).

Almost surely, 2^{2278552008777} is an apocalyptic number.

It is an amenable number.

2278552008777 is a deficient number, since it is larger than the sum of its proper divisors (1060813470183).

2278552008777 is a wasteful number, since it uses less digits than its factorization.

2278552008777 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6277002804 (or 6277002793 counting only the distinct ones).

The product of its (nonzero) digits is 30732800, while the sum is 60.

Subtracting 2278552008777 from its reverse (7778002558722), we obtain a palindrome (5499450549945).

The spelling of 2278552008777 in words is "two trillion, two hundred seventy-eight billion, five hundred fifty-two million, eight thousand, seven hundred seventy-seven".