8278674792571 has 4 divisors (see below), whose sum is σ = 8278714888312. Its totient is φ = 8278634696832.

The previous prime is 8278674792547. The next prime is 8278674792643. The reversal of 8278674792571 is 1752974768728.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8278674792571 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8278674792494 and 8278674792503.

It is not an unprimeable number, because it can be changed into a prime (8278674192571) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19736550 + ... + 20151643.

It is an arithmetic number, because the mean of its divisors is an integer number (2069678722078).

Almost surely, 2^{8278674792571} is an apocalyptic number.

8278674792571 is a deficient number, since it is larger than the sum of its proper divisors (40095741).

8278674792571 is a wasteful number, since it uses less digits than its factorization.

8278674792571 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40095740.

The product of its digits is 663828480, while the sum is 73.

The spelling of 8278674792571 in words is "eight trillion, two hundred seventy-eight billion, six hundred seventy-four million, seven hundred ninety-two thousand, five hundred seventy-one".