421687792786674 has 8 divisors (see below), whose sum is σ = 843375585573360. Its totient is φ = 140562597595556.

The previous prime is 421687792786657. The next prime is 421687792786697. The reversal of 421687792786674 is 476687297786124.

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

421687792786674 is an admirable number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35140649398884 + ... + 35140649398895.

It is an arithmetic number, because the mean of its divisors is an integer number (105421948196670).

Almost surely, 2^{421687792786674} is an apocalyptic number.

421687792786674 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

421687792786674 is a wasteful number, since it uses less digits than its factorization.

421687792786674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70281298797784.

The product of its digits is 19118260224, while the sum is 84.

The spelling of 421687792786674 in words is "four hundred twenty-one trillion, six hundred eighty-seven billion, seven hundred ninety-two million, seven hundred eighty-six thousand, six hundred seventy-four".