421078632094 has 4 divisors (see below), whose sum is σ = 631617948144. Its totient is φ = 210539316046.

The previous prime is 421078632043. The next prime is 421078632097. The reversal of 421078632094 is 490236870124.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421078632097) 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 as a sum of consecutive naturals, namely, 105269658022 + ... + 105269658025.

It is an arithmetic number, because the mean of its divisors is an integer number (157904487036).

Almost surely, 2^421078632094 is an apocalyptic number.

421078632094 is a deficient number, since it is larger than the sum of its proper divisors (210539316050).

421078632094 is a wasteful number, since it uses less digits than its factorization.

421078632094 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210539316049.

The product of its (nonzero) digits is 580608, while the sum is 46.

The spelling of 421078632094 in words is "four hundred twenty-one billion, seventy-eight million, six hundred thirty-two thousand, ninety-four".