2776799680 has 56 divisors (see below), whose sum is σ = 6790992768. Its totient is φ = 1080695808.

The previous prime is 2776799671. The next prime is 2776799731. The reversal of 2776799680 is 869976772.

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, 105424 + ... + 129103.

It is an arithmetic number, because the mean of its divisors is an integer number (121267728).

Almost surely, 2^2776799680 is an apocalyptic number.

2776799680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2776799680 is an abundant number, since it is smaller than the sum of its proper divisors (4014193088).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2776799680 is a wasteful number, since it uses less digits than its factorization.

2776799680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234581 (or 234571 counting only the distinct ones).

The product of its (nonzero) digits is 16003008, while the sum is 61.

The square root of 2776799680 is about 52695.3478022491. The cubic root of 2776799680 is about 1405.5560975439.

The spelling of 2776799680 in words is "two billion, seven hundred seventy-six million, seven hundred ninety-nine thousand, six hundred eighty".