54906424778 has 4 divisors (see below), whose sum is σ = 82359637170. Its totient is φ = 27453212388.

The previous prime is 54906424709. The next prime is 54906424819. The reversal of 54906424778 is 87742460945.

It is a happy number.

54906424778 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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., 52811257249 + 2095167529 = 229807^2 + 45773^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13726606193 + ... + 13726606196.

Almost surely, 2^54906424778 is an apocalyptic number.

54906424778 is a deficient number, since it is larger than the sum of its proper divisors (27453212392).

54906424778 is a wasteful number, since it uses less digits than its factorization.

54906424778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27453212391.

The product of its (nonzero) digits is 13547520, while the sum is 56.

The spelling of 54906424778 in words is "fifty-four billion, nine hundred six million, four hundred twenty-four thousand, seven hundred seventy-eight".