54638883645 has 32 divisors (see below), whose sum is σ = 89856127872. Its totient is φ = 28330682112.

The previous prime is 54638883617. The next prime is 54638883667.

54638883645 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 54638883645 - 2⁸ = 54638883389 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 673699 + ... + 750431.

It is an arithmetic number, because the mean of its divisors is an integer number (2808003996).

Almost surely, 2^54638883645 is an apocalyptic number.

It is an amenable number.

54638883645 is a deficient number, since it is larger than the sum of its proper divisors (35217244227).

54638883645 is a wasteful number, since it uses less digits than its factorization.

54638883645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78061.

The product of its digits is 66355200, while the sum is 60.

The spelling of 54638883645 in words is "fifty-four billion, six hundred thirty-eight million, eight hundred eighty-three thousand, six hundred forty-five".