54034990978 has 4 divisors (see below), whose sum is σ = 81052486470. Its totient is φ = 27017495488.

The previous prime is 54034990963. The next prime is 54034990987. The reversal of 54034990978 is 87909943045.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 30468749809 + 23566241169 = 174553^2 + 153513^2 .

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13508747743 + ... + 13508747746.

Almost surely, 2^54034990978 is an apocalyptic number.

54034990978 is a deficient number, since it is larger than the sum of its proper divisors (27017495492).

54034990978 is a wasteful number, since it uses less digits than its factorization.

54034990978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27017495491.

The product of its (nonzero) digits is 9797760, while the sum is 58.

The spelling of 54034990978 in words is "fifty-four billion, thirty-four million, nine hundred ninety thousand, nine hundred seventy-eight".