80361453859 has 4 divisors (see below), whose sum is σ = 81157111920. Its totient is φ = 79565795800.

The previous prime is 80361453839. The next prime is 80361453883. The reversal of 80361453859 is 95835416308.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 80361453859 - 2⁵ = 80361453827 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80361453839) 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, 397828879 + ... + 397829080.

It is an arithmetic number, because the mean of its divisors is an integer number (20289277980).

Almost surely, 2^80361453859 is an apocalyptic number.

80361453859 is a deficient number, since it is larger than the sum of its proper divisors (795658061).

80361453859 is a wasteful number, since it uses less digits than its factorization.

80361453859 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 795658060.

The product of its (nonzero) digits is 3110400, while the sum is 52.

The spelling of 80361453859 in words is "eighty billion, three hundred sixty-one million, four hundred fifty-three thousand, eight hundred fifty-nine".