80781504367 has 8 divisors (see below), whose sum is σ = 81103625856. Its totient is φ = 80459496792.

The previous prime is 80781504343. The next prime is 80781504379. The reversal of 80781504367 is 76340518708.

It is a happy number.

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 80781504367 - 2²⁷ = 80647286639 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 80781504367.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80781502367) 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, 1570308 + ... + 1620934.

It is an arithmetic number, because the mean of its divisors is an integer number (10137953232).

Almost surely, 2^80781504367 is an apocalyptic number.

80781504367 is a deficient number, since it is larger than the sum of its proper divisors (322121489).

80781504367 is a wasteful number, since it uses less digits than its factorization.

80781504367 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56957.

The product of its (nonzero) digits is 1128960, while the sum is 49.

The spelling of 80781504367 in words is "eighty billion, seven hundred eighty-one million, five hundred four thousand, three hundred sixty-seven".