2733447978 has 16 divisors (see below), whose sum is σ = 6074328960. Its totient is φ = 911149308.

The previous prime is 2733447973. The next prime is 2733448007. The reversal of 2733447978 is 8797443372.

2733447978 is a `hidden beast` number, since 2 + 73 + 34 + 479 + 78 = 666.

2733447978 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (54), and also a Moran number because the ratio is a prime number: 50619407 = 2733447978 / (2 + 7 + 3 + 3 + 4 + 4 + 7 + 9 + 7 + 8).

It is not an unprimeable number, because it can be changed into a prime (2733447973) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25309650 + ... + 25309757.

It is an arithmetic number, because the mean of its divisors is an integer number (379645560).

Almost surely, 2^2733447978 is an apocalyptic number.

2733447978 is an abundant number, since it is smaller than the sum of its proper divisors (3340880982).

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

2733447978 is a wasteful number, since it uses less digits than its factorization.

2733447978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50619418 (or 50619412 counting only the distinct ones).

The product of its digits is 7112448, while the sum is 54.

The square root of 2733447978 is about 52282.3868812433. The cubic root of 2733447978 is about 1398.2031331861.

The spelling of 2733447978 in words is "two billion, seven hundred thirty-three million, four hundred forty-seven thousand, nine hundred seventy-eight".