2729954978 has 16 divisors (see below), whose sum is σ = 4119897600. Its totient is φ = 1356668400.

The previous prime is 2729954977. The next prime is 2729954987. The reversal of 2729954978 is 8794599272.

It is a self number, because there is not a number n which added to its sum of digits gives 2729954978.

It is not an unprimeable number, because it can be changed into a prime (2729954971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 597848 + ... + 602396.

It is an arithmetic number, because the mean of its divisors is an integer number (257493600).

Almost surely, 2^2729954978 is an apocalyptic number.

2729954978 is a deficient number, since it is larger than the sum of its proper divisors (1389942622).

2729954978 is a wasteful number, since it uses less digits than its factorization.

2729954978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6313.

The product of its digits is 22861440, while the sum is 62.

The square root of 2729954978 is about 52248.9710712087. The cubic root of 2729954978 is about 1397.6073038639.

The spelling of 2729954978 in words is "two billion, seven hundred twenty-nine million, nine hundred fifty-four thousand, nine hundred seventy-eight".