8201779774027 has 4 divisors (see below), whose sum is σ = 9373462598896. Its totient is φ = 7030096949160.

The previous prime is 8201779773983. The next prime is 8201779774049. The reversal of 8201779774027 is 7204779771028.

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 8201779774027 - 2⁷ = 8201779773899 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8201779774427) 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, 585841412424 + ... + 585841412437.

It is an arithmetic number, because the mean of its divisors is an integer number (2343365649724).

Almost surely, 2^{8201779774027} is an apocalyptic number.

8201779774027 is a deficient number, since it is larger than the sum of its proper divisors (1171682824869).

8201779774027 is a wasteful number, since it uses less digits than its factorization.

8201779774027 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1171682824868.

The product of its (nonzero) digits is 19361664, while the sum is 61.

The spelling of 8201779774027 in words is "eight trillion, two hundred one billion, seven hundred seventy-nine million, seven hundred seventy-four thousand, twenty-seven".