80751863 has 4 divisors (see below), whose sum is σ = 83536440. Its totient is φ = 77967288.

The previous prime is 80751859. The next prime is 80751877. The reversal of 80751863 is 36815708.

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 80751863 - 2² = 80751859 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80751833) 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, 1392245 + ... + 1392302.

It is an arithmetic number, because the mean of its divisors is an integer number (20884110).

Almost surely, 2^80751863 is an apocalyptic number.

80751863 is a deficient number, since it is larger than the sum of its proper divisors (2784577).

80751863 is a wasteful number, since it uses less digits than its factorization.

80751863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2784576.

The product of its (nonzero) digits is 40320, while the sum is 38.

The square root of 80751863 is about 8986.2040373007. The cubic root of 80751863 is about 432.2325975789.

The spelling of 80751863 in words is "eighty million, seven hundred fifty-one thousand, eight hundred sixty-three".