80521637630847 has 16 divisors (see below), whose sum is σ = 122701847735040. Its totient is φ = 46011535820352.

The previous prime is 80521637630831. The next prime is 80521637630891. The reversal of 80521637630847 is 74803673612508.

It is a happy number.

It is not a de Polignac number, because 80521637630847 - 2⁴ = 80521637630831 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80521637630897) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33327558 + ... + 35661875.

It is an arithmetic number, because the mean of its divisors is an integer number (7668865483440).

Almost surely, 2^{80521637630847} is an apocalyptic number.

80521637630847 is a deficient number, since it is larger than the sum of its proper divisors (42180210104193).

80521637630847 is a wasteful number, since it uses less digits than its factorization.

80521637630847 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69045022.

The product of its (nonzero) digits is 40642560, while the sum is 60.

The spelling of 80521637630847 in words is "eighty trillion, five hundred twenty-one billion, six hundred thirty-seven million, six hundred thirty thousand, eight hundred forty-seven".