421696974097 has 16 divisors (see below), whose sum is σ = 482511064192. Its totient is φ = 361026046080.

The previous prime is 421696974079. The next prime is 421696974109. The reversal of 421696974097 is 790479696124.

It is not a de Polignac number, because 421696974097 - 2²⁷ = 421562756369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (421696974047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25810543 + ... + 25826875.

It is an arithmetic number, because the mean of its divisors is an integer number (30156941512).

Almost surely, 2^421696974097 is an apocalyptic number.

It is an amenable number.

421696974097 is a deficient number, since it is larger than the sum of its proper divisors (60814090095).

421696974097 is a wasteful number, since it uses less digits than its factorization.

421696974097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20488.

The product of its (nonzero) digits is 41150592, while the sum is 64.

The spelling of 421696974097 in words is "four hundred twenty-one billion, six hundred ninety-six million, nine hundred seventy-four thousand, ninety-seven".