80778884231 has 8 divisors (see below), whose sum is σ = 80904272400. Its totient is φ = 80653587840.

The previous prime is 80778884209. The next prime is 80778884239. The reversal of 80778884231 is 13248887708.

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

It is a cyclic number.

It is not a de Polignac number, because 80778884231 - 2³⁴ = 63599015047 is a prime.

It is a super-2 number, since 2×80778884231² (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 (80778884239) 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, 1856240 + ... + 1899258.

It is an arithmetic number, because the mean of its divisors is an integer number (10113034050).

Almost surely, 2^80778884231 is an apocalyptic number.

80778884231 is a deficient number, since it is larger than the sum of its proper divisors (125388169).

80778884231 is a wasteful number, since it uses less digits than its factorization.

80778884231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45889.

The product of its (nonzero) digits is 4816896, while the sum is 56.

The spelling of 80778884231 in words is "eighty billion, seven hundred seventy-eight million, eight hundred eighty-four thousand, two hundred thirty-one".