54450646623 has 48 divisors (see below), whose sum is σ = 80936534016. Its totient is φ = 35260505280.

The previous prime is 54450646619. The next prime is 54450646631. The reversal of 54450646623 is 32664605445.

It is a happy number.

54450646623 is a `hidden beast` number, since 5 + 44 + 506 + 46 + 62 + 3 = 666.

It is not a de Polignac number, because 54450646623 - 2² = 54450646619 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54450646693) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 54944658 + ... + 54945648.

It is an arithmetic number, because the mean of its divisors is an integer number (1686177792).

Almost surely, 2^54450646623 is an apocalyptic number.

54450646623 is a gapful number since it is divisible by the number (53) formed by its first and last digit.

54450646623 is a deficient number, since it is larger than the sum of its proper divisors (26485887393).

54450646623 is a wasteful number, since it uses less digits than its factorization.

54450646623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2084 (or 2081 counting only the distinct ones).

The product of its (nonzero) digits is 2073600, while the sum is 45.

The spelling of 54450646623 in words is "fifty-four billion, four hundred fifty million, six hundred forty-six thousand, six hundred twenty-three".