421731500834 has 32 divisors (see below), whose sum is σ = 747981820800. Its totient is φ = 174490081920.

The previous prime is 421731500819. The next prime is 421731500903. The reversal of 421731500834 is 438005137124.

It is a Curzon 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, 3913049 + ... + 4019379.

It is an arithmetic number, because the mean of its divisors is an integer number (23374431900).

Almost surely, 2^421731500834 is an apocalyptic number.

421731500834 is a deficient number, since it is larger than the sum of its proper divisors (326250319966).

421731500834 is a wasteful number, since it uses less digits than its factorization.

421731500834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116138.

The product of its (nonzero) digits is 80640, while the sum is 38.

Adding to 421731500834 its reverse (438005137124), we get a palindrome (859736637958).

The spelling of 421731500834 in words is "four hundred twenty-one billion, seven hundred thirty-one million, five hundred thousand, eight hundred thirty-four".