84006676637413 has 4 divisors (see below), whose sum is σ = 84950571880620. Its totient is φ = 83062781394208.

The previous prime is 84006676637381. The next prime is 84006676637417. The reversal of 84006676637413 is 31473667660048.

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

It can be written as a sum of positive squares in 2 ways, for example, as 60200249889924 + 23806426747489 = 7758882^2 + 4879183^2 .

It is a cyclic number.

It is not a de Polignac number, because 84006676637413 - 2⁵ = 84006676637381 is a prime.

It is a super-2 number, since 2×84006676637413² (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 (84006676637417) 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, 471947621470 + ... + 471947621647.

It is an arithmetic number, because the mean of its divisors is an integer number (21237642970155).

Almost surely, 2^{84006676637413} is an apocalyptic number.

It is an amenable number.

84006676637413 is a deficient number, since it is larger than the sum of its proper divisors (943895243207).

84006676637413 is an equidigital number, since it uses as much as digits as its factorization.

84006676637413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 943895243206.

The product of its (nonzero) digits is 73156608, while the sum is 61.

The spelling of 84006676637413 in words is "eighty-four trillion, six billion, six hundred seventy-six million, six hundred thirty-seven thousand, four hundred thirteen".