80810451 has 12 divisors (see below), whose sum is σ = 117333528. Its totient is φ = 53593344.

The previous prime is 80810449. The next prime is 80810461. The reversal of 80810451 is 15401808.

It is not a de Polignac number, because 80810451 - 2¹ = 80810449 is a prime.

It is not an unprimeable number, because it can be changed into a prime (80810461) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21525 + ... + 24998.

It is an arithmetic number, because the mean of its divisors is an integer number (9777794).

Almost surely, 2^80810451 is an apocalyptic number.

80810451 is a deficient number, since it is larger than the sum of its proper divisors (36523077).

80810451 is a wasteful number, since it uses less digits than its factorization.

80810451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46722 (or 46719 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 27.

The square root of 80810451 is about 8989.4633321461. The cubic root of 80810451 is about 432.3371050606.

The spelling of 80810451 in words is "eighty million, eight hundred ten thousand, four hundred fifty-one".