42846826768517 has 4 divisors (see below), whose sum is σ = 42864194759136. Its totient is φ = 42829458777900.

The previous prime is 42846826768483. The next prime is 42846826768553. The reversal of 42846826768517 is 71586762864824.

It is a happy number.

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 not a de Polignac number, because 42846826768517 - 2⁶ = 42846826768453 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42846826768717) 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, 8683991609 + ... + 8683996542.

It is an arithmetic number, because the mean of its divisors is an integer number (10716048689784).

Almost surely, 2^{42846826768517} is an apocalyptic number.

It is an amenable number.

42846826768517 is a deficient number, since it is larger than the sum of its proper divisors (17367990619).

42846826768517 is a wasteful number, since it uses less digits than its factorization.

42846826768517 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17367990618.

The product of its digits is 1734082560, while the sum is 74.

The spelling of 42846826768517 in words is "forty-two trillion, eight hundred forty-six billion, eight hundred twenty-six million, seven hundred sixty-eight thousand, five hundred seventeen".