15434404026 has 16 divisors (see below), whose sum is σ = 32493482400. Its totient is φ = 4874022288.

The previous prime is 15434404021. The next prime is 15434404043. The reversal of 15434404026 is 62040443451.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (15434404021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67694641 + ... + 67694868.

It is an arithmetic number, because the mean of its divisors is an integer number (2030842650).

Almost surely, 2^15434404026 is an apocalyptic number.

15434404026 is an abundant number, since it is smaller than the sum of its proper divisors (17059078374).

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

15434404026 is a wasteful number, since it uses less digits than its factorization.

15434404026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135389533.

The product of its (nonzero) digits is 46080, while the sum is 33.

Adding to 15434404026 its reverse (62040443451), we get a palindrome (77474847477).

The spelling of 15434404026 in words is "fifteen billion, four hundred thirty-four million, four hundred four thousand, twenty-six".