10226421993 has 4 divisors (see below), whose sum is σ = 13635229328. Its totient is φ = 6817614660.

The previous prime is 10226421973. The next prime is 10226422039. The reversal of 10226421993 is 39912462201.

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 not a de Polignac number, because 10226421993 - 2⁹ = 10226421481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10226421973) 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, 1704403663 + ... + 1704403668.

It is an arithmetic number, because the mean of its divisors is an integer number (3408807332).

Almost surely, 2^10226421993 is an apocalyptic number.

It is an amenable number.

10226421993 is a deficient number, since it is larger than the sum of its proper divisors (3408807335).

10226421993 is an equidigital number, since it uses as much as digits as its factorization.

10226421993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3408807334.

The product of its (nonzero) digits is 46656, while the sum is 39.

The spelling of 10226421993 in words is "ten billion, two hundred twenty-six million, four hundred twenty-one thousand, nine hundred ninety-three".