80336431399 has 4 divisors (see below), whose sum is σ = 91813064464. Its totient is φ = 68859798336.

The previous prime is 80336431393. The next prime is 80336431403. The reversal of 80336431399 is 99313463308.

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

It is not a de Polignac number, because 80336431399 - 2¹⁹ = 80335907111 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 (80336431393) 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, 5738316522 + ... + 5738316535.

It is an arithmetic number, because the mean of its divisors is an integer number (22953266116).

Almost surely, 2^80336431399 is an apocalyptic number.

80336431399 is a deficient number, since it is larger than the sum of its proper divisors (11476633065).

80336431399 is a wasteful number, since it uses less digits than its factorization.

80336431399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11476633064.

The product of its (nonzero) digits is 1259712, while the sum is 49.

The spelling of 80336431399 in words is "eighty billion, three hundred thirty-six million, four hundred thirty-one thousand, three hundred ninety-nine".