80385742469 has 4 divisors (see below), whose sum is σ = 84616571040. Its totient is φ = 76154913900.

The previous prime is 80385742441. The next prime is 80385742471. The reversal of 80385742469 is 96424758308.

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 a cyclic number.

It is not a de Polignac number, because 80385742469 - 2²⁸ = 80117307013 is a prime.

It is a super-2 number, since 2×80385742469² (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 (80385742429) 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, 2115414257 + ... + 2115414294.

It is an arithmetic number, because the mean of its divisors is an integer number (21154142760).

Almost surely, 2^80385742469 is an apocalyptic number.

It is an amenable number.

80385742469 is a deficient number, since it is larger than the sum of its proper divisors (4230828571).

80385742469 is a wasteful number, since it uses less digits than its factorization.

80385742469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4230828570.

The product of its (nonzero) digits is 11612160, while the sum is 56.

The spelling of 80385742469 in words is "eighty billion, three hundred eighty-five million, seven hundred forty-two thousand, four hundred sixty-nine".