2776777345 has 16 divisors (see below), whose sum is σ = 3382156800. Its totient is φ = 2188296000.

The previous prime is 2776777337. The next prime is 2776777351. The reversal of 2776777345 is 5437776772.

It is not a de Polignac number, because 2776777345 - 2³ = 2776777337 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 86680 + ... + 114310.

It is an arithmetic number, because the mean of its divisors is an integer number (211384800).

Almost surely, 2^2776777345 is an apocalyptic number.

It is an amenable number.

2776777345 is a deficient number, since it is larger than the sum of its proper divisors (605379455).

2776777345 is a wasteful number, since it uses less digits than its factorization.

2776777345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27936.

The product of its digits is 12101040, while the sum is 55.

The square root of 2776777345 is about 52695.1358760939. The cubic root of 2776777345 is about 1405.5523290354.

The spelling of 2776777345 in words is "two billion, seven hundred seventy-six million, seven hundred seventy-seven thousand, three hundred forty-five".