80511374 has 4 divisors (see below), whose sum is σ = 120767064. Its totient is φ = 40255686.

The previous prime is 80511323. The next prime is 80511377. The reversal of 80511374 is 47311508.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80511377) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20127842 + ... + 20127845.

It is an arithmetic number, because the mean of its divisors is an integer number (30191766).

Almost surely, 2^80511374 is an apocalyptic number.

80511374 is a deficient number, since it is larger than the sum of its proper divisors (40255690).

80511374 is a wasteful number, since it uses less digits than its factorization.

80511374 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40255689.

The product of its (nonzero) digits is 3360, while the sum is 29.

The square root of 80511374 is about 8972.8130483143. The cubic root of 80511374 is about 431.8030902729.

The spelling of 80511374 in words is "eighty million, five hundred eleven thousand, three hundred seventy-four".