80440102319 has 4 divisors (see below), whose sum is σ = 83937498096. Its totient is φ = 76942706544.

The previous prime is 80440102289. The next prime is 80440102321. The reversal of 80440102319 is 91320104408.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 80440102319 - 2¹⁶ = 80440036783 is a prime.

It is a super-2 number, since 2×80440102319² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80440102399) 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, 1748697854 + ... + 1748697899.

It is an arithmetic number, because the mean of its divisors is an integer number (20984374524).

Almost surely, 2^80440102319 is an apocalyptic number.

80440102319 is a deficient number, since it is larger than the sum of its proper divisors (3497395777).

80440102319 is a wasteful number, since it uses less digits than its factorization.

80440102319 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3497395776.

The product of its (nonzero) digits is 6912, while the sum is 32.

The spelling of 80440102319 in words is "eighty billion, four hundred forty million, one hundred two thousand, three hundred nineteen".