8057205772081 has 4 divisors (see below), whose sum is σ = 8057417780464. Its totient is φ = 8056993763700.

The previous prime is 8057205772009. The next prime is 8057205772117. The reversal of 8057205772081 is 1802775027508.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8057205772081 is a prime.

It is a super-2 number, since 2×8057205772081² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8057205772001) 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, 105947175 + ... + 106023196.

It is an arithmetic number, because the mean of its divisors is an integer number (2014354445116).

Almost surely, 2^{8057205772081} is an apocalyptic number.

It is an amenable number.

8057205772081 is a deficient number, since it is larger than the sum of its proper divisors (212008383).

8057205772081 is a wasteful number, since it uses less digits than its factorization.

8057205772081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212008382.

The product of its (nonzero) digits is 2195200, while the sum is 52.

The spelling of 8057205772081 in words is "eight trillion, fifty-seven billion, two hundred five million, seven hundred seventy-two thousand, eighty-one".