80424242187 has 4 divisors (see below), whose sum is σ = 107232322920. Its totient is φ = 53616161456.

The previous prime is 80424242167. The next prime is 80424242237. The reversal of 80424242187 is 78124242408.

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 80424242187 - 2²³ = 80415853579 is a prime.

It is not an unprimeable number, because it can be changed into a prime (80424242167) 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, 13404040362 + ... + 13404040367.

It is an arithmetic number, because the mean of its divisors is an integer number (26808080730).

Almost surely, 2^80424242187 is an apocalyptic number.

80424242187 is a deficient number, since it is larger than the sum of its proper divisors (26808080733).

80424242187 is a wasteful number, since it uses less digits than its factorization.

80424242187 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26808080732.

The product of its (nonzero) digits is 229376, while the sum is 42.

The spelling of 80424242187 in words is "eighty billion, four hundred twenty-four million, two hundred forty-two thousand, one hundred eighty-seven".