2738516855978 has 8 divisors (see below), whose sum is σ = 4107822894468. Its totient is φ = 1369242557824.

The previous prime is 2738516855939. The next prime is 2738516855993. The reversal of 2738516855978 is 8795586158372.

It is a happy number.

2738516855978 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 2491242386689 + 247274469289 = 1578367^2 + 497267^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7718201 + ... + 8065212.

Almost surely, 2^{2738516855978} is an apocalyptic number.

2738516855978 is a deficient number, since it is larger than the sum of its proper divisors (1369306038490).

2738516855978 is a wasteful number, since it uses less digits than its factorization.

2738516855978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15870168.

The product of its digits is 1016064000, while the sum is 74.

The spelling of 2738516855978 in words is "two trillion, seven hundred thirty-eight billion, five hundred sixteen million, eight hundred fifty-five thousand, nine hundred seventy-eight".