421534603724 has 18 divisors (see below), whose sum is σ = 798795603900. Its totient is φ = 194554432176.

The previous prime is 421534603667. The next prime is 421534603781. The reversal of 421534603724 is 427306435124.

It is an interprime number because it is at equal distance from previous prime (421534603667) and next prime (421534603781).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 311785274 + ... + 311786625.

It is an arithmetic number, because the mean of its divisors is an integer number (44377533550).

Almost surely, 2^421534603724 is an apocalyptic number.

It is an amenable number.

421534603724 is a deficient number, since it is larger than the sum of its proper divisors (377261000176).

421534603724 is a wasteful number, since it uses less digits than its factorization.

421534603724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 623571929 (or 623571914 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 41.

The spelling of 421534603724 in words is "four hundred twenty-one billion, five hundred thirty-four million, six hundred three thousand, seven hundred twenty-four".