421039780803 has 36 divisors (see below), whose sum is σ = 628601173200. Its totient is φ = 271560163680.

The previous prime is 421039780739. The next prime is 421039780831. The reversal of 421039780803 is 308087930124.

It is not a de Polignac number, because 421039780803 - 2⁶ = 421039780739 is a prime.

It is not an unprimeable number, because it can be changed into a prime (421039780883) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 53611225 + ... + 53619077.

It is an arithmetic number, because the mean of its divisors is an integer number (17461143700).

Almost surely, 2^421039780803 is an apocalyptic number.

421039780803 is a deficient number, since it is larger than the sum of its proper divisors (207561392397).

421039780803 is a wasteful number, since it uses less digits than its factorization.

421039780803 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14120 (or 14086 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The spelling of 421039780803 in words is "four hundred twenty-one billion, thirty-nine million, seven hundred eighty thousand, eight hundred three".