80428714693 has 4 divisors (see below), whose sum is σ = 84661804960. Its totient is φ = 76195624428.

The previous prime is 80428714673. The next prime is 80428714759. The reversal of 80428714693 is 39641782408.

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 a de Polignac number, because none of the positive numbers 2^k-80428714693 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 80428714693.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80428714633) 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, 2116545105 + ... + 2116545142.

It is an arithmetic number, because the mean of its divisors is an integer number (21165451240).

Almost surely, 2^80428714693 is an apocalyptic number.

It is an amenable number.

80428714693 is a deficient number, since it is larger than the sum of its proper divisors (4233090267).

80428714693 is a wasteful number, since it uses less digits than its factorization.

80428714693 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4233090266.

The product of its (nonzero) digits is 2322432, while the sum is 52.

The spelling of 80428714693 in words is "eighty billion, four hundred twenty-eight million, seven hundred fourteen thousand, six hundred ninety-three".