12403154644 has 48 divisors (see below), whose sum is σ = 23679640656. Its totient is φ = 5662310400.

The previous prime is 12403154641. The next prime is 12403154663. The reversal of 12403154644 is 44645130421.

12403154644 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 173448900 + 12229705744 = 13170^2 + 110588^2 .

It is a super-3 number, since 3×12403154644³ (a number of 31 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12403154641) 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 15 ways as a sum of consecutive naturals, for example, 282324 + ... + 323284.

It is an arithmetic number, because the mean of its divisors is an integer number (493325847).

Almost surely, 2^12403154644 is an apocalyptic number.

It is an amenable number.

12403154644 is a deficient number, since it is larger than the sum of its proper divisors (11276486012).

12403154644 is a wasteful number, since it uses less digits than its factorization.

12403154644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41116 (or 41114 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 34.

The spelling of 12403154644 in words is "twelve billion, four hundred three million, one hundred fifty-four thousand, six hundred forty-four".