2277761771979 has 24 divisors (see below), whose sum is σ = 3484858218192. Its totient is φ = 1428682291200.

The previous prime is 2277761771977. The next prime is 2277761772061. The reversal of 2277761771979 is 9791771677722.

It is not a de Polignac number, because 2277761771979 - 2¹ = 2277761771977 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2277761771977) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2174694 + ... + 3047099.

It is an arithmetic number, because the mean of its divisors is an integer number (145202425758).

Almost surely, 2^{2277761771979} is an apocalyptic number.

2277761771979 is a deficient number, since it is larger than the sum of its proper divisors (1207096446213).

2277761771979 is a wasteful number, since it uses less digits than its factorization.

2277761771979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5224667 (or 5224664 counting only the distinct ones).

The product of its digits is 228709656, while the sum is 72.

The spelling of 2277761771979 in words is "two trillion, two hundred seventy-seven billion, seven hundred sixty-one million, seven hundred seventy-one thousand, nine hundred seventy-nine".