84642682600669 has 4 divisors (see below), whose sum is σ = 84681527340160. Its totient is φ = 84603837861180.

The previous prime is 84642682600643. The next prime is 84642682600703. The reversal of 84642682600669 is 96600628624648.

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-84642682600669 is a prime.

It is a super-2 number, since 2×84642682600669² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84642682603669) 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, 19422366477 + ... + 19422370834.

It is an arithmetic number, because the mean of its divisors is an integer number (21170381835040).

Almost surely, 2^{84642682600669} is an apocalyptic number.

It is an amenable number.

84642682600669 is a deficient number, since it is larger than the sum of its proper divisors (38844739491).

84642682600669 is a wasteful number, since it uses less digits than its factorization.

84642682600669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38844739490.

The product of its (nonzero) digits is 286654464, while the sum is 67.

The spelling of 84642682600669 in words is "eighty-four trillion, six hundred forty-two billion, six hundred eighty-two million, six hundred thousand, six hundred sixty-nine".