54874447845 has 128 divisors (see below), whose sum is σ = 105140904960. Its totient is φ = 23917731840.

The previous prime is 54874447843. The next prime is 54874447867.

It is a happy number.

54874447845 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 54874447845 - 2¹ = 54874447843 is a prime.

It is a super-2 number, since 2×54874447845² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54874447841) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 51331971 + ... + 51333039.

It is an arithmetic number, because the mean of its divisors is an integer number (821413320).

Almost surely, 2^54874447845 is an apocalyptic number.

It is an amenable number.

54874447845 is a deficient number, since it is larger than the sum of its proper divisors (50266457115).

54874447845 is a wasteful number, since it uses less digits than its factorization.

54874447845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1375.

The product of its digits is 80281600, while the sum is 60.

The spelling of 54874447845 in words is "fifty-four billion, eight hundred seventy-four million, four hundred forty-seven thousand, eight hundred forty-five".