80112720262 has 4 divisors (see below), whose sum is σ = 120169080396. Its totient is φ = 40056360130.

The previous prime is 80112720253. The next prime is 80112720287. The reversal of 80112720262 is 26202721108.

It is a happy number.

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

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20028180064 + ... + 20028180067.

It is an arithmetic number, because the mean of its divisors is an integer number (30042270099).

Almost surely, 2^80112720262 is an apocalyptic number.

80112720262 is a deficient number, since it is larger than the sum of its proper divisors (40056360134).

80112720262 is a wasteful number, since it uses less digits than its factorization.

80112720262 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40056360133.

The product of its (nonzero) digits is 5376, while the sum is 31.

The spelling of 80112720262 in words is "eighty billion, one hundred twelve million, seven hundred twenty thousand, two hundred sixty-two".