15403212426 has 48 divisors (see below), whose sum is σ = 35906798880. Its totient is φ = 4392228960.

The previous prime is 15403212421. The next prime is 15403212479. The reversal of 15403212426 is 62421230451.

15403212426 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 15403212393 and 15403212402.

It is not an unprimeable number, because it can be changed into a prime (15403212421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 98181 + ... + 201111.

It is an arithmetic number, because the mean of its divisors is an integer number (748058310).

Almost surely, 2^15403212426 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15403212426, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17953399440).

15403212426 is an abundant number, since it is smaller than the sum of its proper divisors (20503586454).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

15403212426 is a wasteful number, since it uses less digits than its factorization.

15403212426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103459 (or 103452 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

Adding to 15403212426 its reverse (62421230451), we get a palindrome (77824442877).

The spelling of 15403212426 in words is "fifteen billion, four hundred three million, two hundred twelve thousand, four hundred twenty-six".