80139349349 has 4 divisors (see below), whose sum is σ = 80306655360. Its totient is φ = 79972043340.

The previous prime is 80139349337. The next prime is 80139349361. The reversal of 80139349349 is 94394393108.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (80139349337) and next prime (80139349361).

It is a cyclic number.

It is not a de Polignac number, because 80139349349 - 2¹⁶ = 80139283813 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 80139349349.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80139349319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 83652287 + ... + 83653244.

It is an arithmetic number, because the mean of its divisors is an integer number (20076663840).

Almost surely, 2^80139349349 is an apocalyptic number.

It is an amenable number.

80139349349 is a deficient number, since it is larger than the sum of its proper divisors (167306011).

80139349349 is a wasteful number, since it uses less digits than its factorization.

80139349349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167306010.

The product of its (nonzero) digits is 2519424, while the sum is 53.

The spelling of 80139349349 in words is "eighty billion, one hundred thirty-nine million, three hundred forty-nine thousand, three hundred forty-nine".