80021324977 has 16 divisors (see below), whose sum is σ = 91901188800. Its totient is φ = 68909883840.

The previous prime is 80021324963. The next prime is 80021324987. The reversal of 80021324977 is 77942312008.

It is a cyclic number.

It is not a de Polignac number, because 80021324977 - 2¹⁵ = 80021292209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80021324947) 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, 2424099 + ... + 2456887.

It is an arithmetic number, because the mean of its divisors is an integer number (5743824300).

Almost surely, 2^80021324977 is an apocalyptic number.

It is an amenable number.

80021324977 is a deficient number, since it is larger than the sum of its proper divisors (11879863823).

80021324977 is a wasteful number, since it uses less digits than its factorization.

80021324977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44496.

The product of its (nonzero) digits is 169344, while the sum is 43.

The spelling of 80021324977 in words is "eighty billion, twenty-one million, three hundred twenty-four thousand, nine hundred seventy-seven".