5446991623 has 4 divisors (see below), whose sum is σ = 5450460408. Its totient is φ = 5443522840.

The previous prime is 5446991621. The next prime is 5446991657. The reversal of 5446991623 is 3261996445.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3261996445 = 5 ⋅652399289.

It is a cyclic number.

It is not a de Polignac number, because 5446991623 - 2¹ = 5446991621 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5446991621) 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, 1732036 + ... + 1735177.

It is an arithmetic number, because the mean of its divisors is an integer number (1362615102).

Almost surely, 2^5446991623 is an apocalyptic number.

5446991623 is a deficient number, since it is larger than the sum of its proper divisors (3468785).

5446991623 is a wasteful number, since it uses less digits than its factorization.

5446991623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3468784.

The product of its digits is 1399680, while the sum is 49.

The square root of 5446991623 is about 73803.7371885733. The cubic root of 5446991623 is about 1759.4850015880.

The spelling of 5446991623 in words is "five billion, four hundred forty-six million, nine hundred ninety-one thousand, six hundred twenty-three".