10009434421 has 4 divisors (see below), whose sum is σ = 11439353632. Its totient is φ = 8579515212.

The previous prime is 10009434397. The next prime is 10009434431. The reversal of 10009434421 is 12443490001.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 10009434421 - 2⁷ = 10009434293 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 10009434421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10009434431) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 714959595 + ... + 714959608.

It is an arithmetic number, because the mean of its divisors is an integer number (2859838408).

Almost surely, 2^10009434421 is an apocalyptic number.

It is an amenable number.

10009434421 is a deficient number, since it is larger than the sum of its proper divisors (1429919211).

10009434421 is an equidigital number, since it uses as much as digits as its factorization.

10009434421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1429919210.

The product of its (nonzero) digits is 3456, while the sum is 28.

The spelling of 10009434421 in words is "ten billion, nine million, four hundred thirty-four thousand, four hundred twenty-one".