2743718978 has 128 divisors (see below), whose sum is σ = 6160250880. Its totient is φ = 879621120.

The previous prime is 2743718977. The next prime is 2743718983. The reversal of 2743718978 is 8798173472.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (2743718977) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 644525 + ... + 648767.

It is an arithmetic number, because the mean of its divisors is an integer number (48126960).

Almost surely, 2^2743718978 is an apocalyptic number.

2743718978 is an abundant number, since it is smaller than the sum of its proper divisors (3416531902).

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

2743718978 is a wasteful number, since it uses less digits than its factorization.

2743718978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4312.

The product of its digits is 4741632, while the sum is 56.

The square root of 2743718978 is about 52380.5209786997. The cubic root of 2743718978 is about 1399.9522055112.

The spelling of 2743718978 in words is "two billion, seven hundred forty-three million, seven hundred eighteen thousand, nine hundred seventy-eight".