421687792786675 has 12 divisors (see below), whose sum is σ = 523417329348256. Its totient is φ = 337011868879200.

The previous prime is 421687792786657. The next prime is 421687792786697. The reversal of 421687792786675 is 576687297786124.

It is a happy number.

It is not a de Polignac number, because 421687792786675 - 2³⁵ = 421653433048307 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 421687792786592 and 421687792786601.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8459108331 + ... + 8459158180.

Almost surely, 2^{421687792786675} is an apocalyptic number.

421687792786675 is a deficient number, since it is larger than the sum of its proper divisors (101729536561581).

421687792786675 is a wasteful number, since it uses less digits than its factorization.

421687792786675 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16918267518 (or 16918267513 counting only the distinct ones).

The product of its digits is 23897825280, while the sum is 85.

The spelling of 421687792786675 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-five".