2747778988 has 6 divisors (see below), whose sum is σ = 4808613236. Its totient is φ = 1373889492.

The previous prime is 2747778949. The next prime is 2747779007. The reversal of 2747778988 is 8898777472.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 343472370 + ... + 343472377.

Almost surely, 2^2747778988 is an apocalyptic number.

It is an amenable number.

2747778988 is a deficient number, since it is larger than the sum of its proper divisors (2060834248).

2747778988 is a wasteful number, since it uses less digits than its factorization.

2747778988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 686944751 (or 686944749 counting only the distinct ones).

The product of its digits is 88510464, while the sum is 67.

The square root of 2747778988 is about 52419.2616125027. The cubic root of 2747778988 is about 1400.6423902281.

The spelling of 2747778988 in words is "two billion, seven hundred forty-seven million, seven hundred seventy-eight thousand, nine hundred eighty-eight".