8077841738021 has 32 divisors (see below), whose sum is σ = 9304124227200. Its totient is φ = 6935900590080.

The previous prime is 8077841737993. The next prime is 8077841738069. The reversal of 8077841738021 is 1208371487708.

It is not a de Polignac number, because 8077841738021 - 2²² = 8077837543717 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8077841738821) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 574642025 + ... + 574656081.

It is an arithmetic number, because the mean of its divisors is an integer number (290753882100).

Almost surely, 2^{8077841738021} is an apocalyptic number.

It is an amenable number.

8077841738021 is a deficient number, since it is larger than the sum of its proper divisors (1226282489179).

8077841738021 is a wasteful number, since it uses less digits than its factorization.

8077841738021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22229.

The product of its (nonzero) digits is 4214784, while the sum is 56.

The spelling of 8077841738021 in words is "eight trillion, seventy-seven billion, eight hundred forty-one million, seven hundred thirty-eight thousand, twenty-one".