80780780361 has 8 divisors (see below), whose sum is σ = 113376533920. Its totient is φ = 51019440192.

The previous prime is 80780780359. The next prime is 80780780369. The reversal of 80780780361 is 16308708708.

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

It is not a de Polignac number, because 80780780361 - 2¹ = 80780780359 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 80780780361.

It is not an unprimeable number, because it can be changed into a prime (80780780369) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 708603280 + ... + 708603393.

It is an arithmetic number, because the mean of its divisors is an integer number (14172066740).

Almost surely, 2^80780780361 is an apocalyptic number.

It is an amenable number.

80780780361 is a deficient number, since it is larger than the sum of its proper divisors (32595753559).

80780780361 is a wasteful number, since it uses less digits than its factorization.

80780780361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1417206695.

The product of its (nonzero) digits is 451584, while the sum is 48.

The spelling of 80780780361 in words is "eighty billion, seven hundred eighty million, seven hundred eighty thousand, three hundred sixty-one".