1674680405999 has 8 divisors (see below), whose sum is σ = 1707972808320. Its totient is φ = 1641551603416.

The previous prime is 1674680405987. The next prime is 1674680406017. The reversal of 1674680405999 is 9995040864761.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1674680405999 - 2²⁰ = 1674679357423 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 (1674680405939) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40879259 + ... + 40920204.

It is an arithmetic number, because the mean of its divisors is an integer number (213496601040).

Almost surely, 2^{1674680405999} is an apocalyptic number.

1674680405999 is a deficient number, since it is larger than the sum of its proper divisors (33292402321).

1674680405999 is an equidigital number, since it uses as much as digits as its factorization.

1674680405999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81799869.

The product of its (nonzero) digits is 117573120, while the sum is 68.

The spelling of 1674680405999 in words is "one trillion, six hundred seventy-four billion, six hundred eighty million, four hundred five thousand, nine hundred ninety-nine".