83844402623 has 4 divisors (see below), whose sum is σ = 83939573088. Its totient is φ = 83749232160.

The previous prime is 83844402581. The next prime is 83844402641. The reversal of 83844402623 is 32620444838.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-83844402623 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 (83844402023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47583911 + ... + 47585672.

It is an arithmetic number, because the mean of its divisors is an integer number (20984893272).

Almost surely, 2^83844402623 is an apocalyptic number.

83844402623 is a deficient number, since it is larger than the sum of its proper divisors (95170465).

83844402623 is an equidigital number, since it uses as much as digits as its factorization.

83844402623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95170464.

The product of its (nonzero) digits is 884736, while the sum is 44.

The spelling of 83844402623 in words is "eighty-three billion, eight hundred forty-four million, four hundred two thousand, six hundred twenty-three".