8081235081547 has 4 divisors (see below), whose sum is σ = 8123545213056. Its totient is φ = 8038924950040.

The previous prime is 8081235081473. The next prime is 8081235081559. The reversal of 8081235081547 is 7451805321808.

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 8081235081547 - 2¹⁵ = 8081235048779 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8081235081494 and 8081235081503.

It is not an unprimeable number, because it can be changed into a prime (8081235081047) 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, 21155065468 + ... + 21155065849.

It is an arithmetic number, because the mean of its divisors is an integer number (2030886303264).

Almost surely, 2^{8081235081547} is an apocalyptic number.

8081235081547 is a deficient number, since it is larger than the sum of its proper divisors (42310131509).

8081235081547 is a wasteful number, since it uses less digits than its factorization.

8081235081547 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42310131508.

The product of its (nonzero) digits is 2150400, while the sum is 52.

The spelling of 8081235081547 in words is "eight trillion, eighty-one billion, two hundred thirty-five million, eighty-one thousand, five hundred forty-seven".