54646456899 has 4 divisors (see below), whose sum is σ = 72861942536. Its totient is φ = 36430971264.

The previous prime is 54646456883. The next prime is 54646456927. The reversal of 54646456899 is 99865464645.

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

It is not a de Polignac number, because 54646456899 - 2⁴ = 54646456883 is a prime.

It is a super-2 number, since 2×54646456899² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54646456499) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9107742814 + ... + 9107742819.

It is an arithmetic number, because the mean of its divisors is an integer number (18215485634).

Almost surely, 2^54646456899 is an apocalyptic number.

54646456899 is a deficient number, since it is larger than the sum of its proper divisors (18215485637).

54646456899 is a wasteful number, since it uses less digits than its factorization.

54646456899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18215485636.

The product of its digits is 223948800, while the sum is 66.

The spelling of 54646456899 in words is "fifty-four billion, six hundred forty-six million, four hundred fifty-six thousand, eight hundred ninety-nine".