2544741978 has 32 divisors (see below), whose sum is σ = 5211366336. Its totient is φ = 827960448.

The previous prime is 2544741971. The next prime is 2544742001. The reversal of 2544741978 is 8791474452.

It is a self number, because there is not a number n which added to its sum of digits gives 2544741978.

It is not an unprimeable number, because it can be changed into a prime (2544741971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 568726 + ... + 573182.

It is an arithmetic number, because the mean of its divisors is an integer number (162855198).

Almost surely, 2^2544741978 is an apocalyptic number.

2544741978 is an abundant number, since it is smaller than the sum of its proper divisors (2666624358).

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

2544741978 is a wasteful number, since it uses less digits than its factorization.

2544741978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6718.

The product of its digits is 2257920, while the sum is 51.

The square root of 2544741978 is about 50445.4356508099. The cubic root of 2544741978 is about 1365.2575429463.

The spelling of 2544741978 in words is "two billion, five hundred forty-four million, seven hundred forty-one thousand, nine hundred seventy-eight".