421648973246 has 32 divisors (see below), whose sum is σ = 640054768320. Its totient is φ = 208314808576.

The previous prime is 421648973197. The next prime is 421648973279. The reversal of 421648973246 is 642379846124.

It is a junction number, because it is equal to n+sod(n) for n = 421648973191 and 421648973200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 74770895 + ... + 74776533.

It is an arithmetic number, because the mean of its divisors is an integer number (20001711510).

Almost surely, 2^421648973246 is an apocalyptic number.

421648973246 is a deficient number, since it is larger than the sum of its proper divisors (218405795074).

421648973246 is a wasteful number, since it uses less digits than its factorization.

421648973246 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7108.

The product of its digits is 13934592, while the sum is 56.

The spelling of 421648973246 in words is "four hundred twenty-one billion, six hundred forty-eight million, nine hundred seventy-three thousand, two hundred forty-six".