54778130129 has 16 divisors (see below), whose sum is σ = 56223839232. Its totient is φ = 53340535248.

The previous prime is 54778130119. The next prime is 54778130153. The reversal of 54778130129 is 92103187745.

54778130129 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 54778130129 - 2²⁰ = 54777081553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54778130119) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27347042 + ... + 27349044.

It is an arithmetic number, because the mean of its divisors is an integer number (3513989952).

Almost surely, 2^54778130129 is an apocalyptic number.

It is an amenable number.

54778130129 is a deficient number, since it is larger than the sum of its proper divisors (1445709103).

54778130129 is a wasteful number, since it uses less digits than its factorization.

54778130129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3676.

The product of its (nonzero) digits is 423360, while the sum is 47.

The spelling of 54778130129 in words is "fifty-four billion, seven hundred seventy-eight million, one hundred thirty thousand, one hundred twenty-nine".