12254424546 has 64 divisors (see below), whose sum is σ = 30244838400. Its totient is φ = 3223354176.

The previous prime is 12254424499. The next prime is 12254424557. The reversal of 12254424546 is 64542445221.

It is a super-2 number, since 2×12254424546² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 177325 + ... + 236543.

It is an arithmetic number, because the mean of its divisors is an integer number (472575600).

Almost surely, 2^12254424546 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12254424546, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15122419200).

12254424546 is an abundant number, since it is smaller than the sum of its proper divisors (17990413854).

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

12254424546 is a wasteful number, since it uses less digits than its factorization.

12254424546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59623.

The product of its digits is 307200, while the sum is 39.

Adding to 12254424546 its reverse (64542445221), we get a palindrome (76796869767).

The spelling of 12254424546 in words is "twelve billion, two hundred fifty-four million, four hundred twenty-four thousand, five hundred forty-six".