54180394479 has 10 divisors (see below), whose sum is σ = 80936144960. Its totient is φ = 36120262932.

The previous prime is 54180394469. The next prime is 54180394487. The reversal of 54180394479 is 97449308145.

54180394479 is a `hidden beast` number, since 5 + 4 + 1 + 80 + 3 + 94 + 479 = 666.

It is not a de Polignac number, because 54180394479 - 2²³ = 54172005871 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54180394469) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 334446799 + ... + 334446960.

It is an arithmetic number, because the mean of its divisors is an integer number (8093614496).

Almost surely, 2^54180394479 is an apocalyptic number.

54180394479 is a deficient number, since it is larger than the sum of its proper divisors (26755750481).

54180394479 is an equidigital number, since it uses as much as digits as its factorization.

54180394479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 668893771 (or 668893762 counting only the distinct ones).

The product of its (nonzero) digits is 4354560, while the sum is 54.

The spelling of 54180394479 in words is "fifty-four billion, one hundred eighty million, three hundred ninety-four thousand, four hundred seventy-nine".