80872049269 has 4 divisors (see below), whose sum is σ = 88224053760. Its totient is φ = 73520044780.

The previous prime is 80872049267. The next prime is 80872049303. The reversal of 80872049269 is 96294027808.

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 80872049269 - 2¹ = 80872049267 is a prime.

It is a super-2 number, since 2×80872049269² (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 (80872049263) 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, 3676002229 + ... + 3676002250.

It is an arithmetic number, because the mean of its divisors is an integer number (22056013440).

Almost surely, 2^80872049269 is an apocalyptic number.

It is an amenable number.

80872049269 is a deficient number, since it is larger than the sum of its proper divisors (7352004491).

80872049269 is a wasteful number, since it uses less digits than its factorization.

80872049269 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7352004490.

The product of its (nonzero) digits is 3483648, while the sum is 55.

The spelling of 80872049269 in words is "eighty billion, eight hundred seventy-two million, forty-nine thousand, two hundred sixty-nine".