80409549399 has 8 divisors (see below), whose sum is σ = 107325236592. Its totient is φ = 53550114240.

The previous prime is 80409549391. The next prime is 80409549401. The reversal of 80409549399 is 99394590408.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 80409549399 - 2³ = 80409549391 is a prime.

It is a super-2 number, since 2×80409549399² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80409549391) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14059672 + ... + 14065389.

It is an arithmetic number, because the mean of its divisors is an integer number (13415654574).

Almost surely, 2^80409549399 is an apocalyptic number.

80409549399 is a deficient number, since it is larger than the sum of its proper divisors (26915687193).

80409549399 is a wasteful number, since it uses less digits than its factorization.

80409549399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28126017.

The product of its (nonzero) digits is 12597120, while the sum is 60.

The spelling of 80409549399 in words is "eighty billion, four hundred nine million, five hundred forty-nine thousand, three hundred ninety-nine".