12944577903 has 12 divisors (see below), whose sum is σ = 18334420680. Its totient is φ = 8122087552.

The previous prime is 12944577901. The next prime is 12944577913. The reversal of 12944577903 is 30977544921.

It is a happy number.

It is not a de Polignac number, because 12944577903 - 2¹ = 12944577901 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12944577901) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7464288 + ... + 7466021.

It is an arithmetic number, because the mean of its divisors is an integer number (1527868390).

Almost surely, 2^12944577903 is an apocalyptic number.

12944577903 is a deficient number, since it is larger than the sum of its proper divisors (5389842777).

12944577903 is a wasteful number, since it uses less digits than its factorization.

12944577903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14930346 (or 14930329 counting only the distinct ones).

The product of its (nonzero) digits is 1905120, while the sum is 51.

The spelling of 12944577903 in words is "twelve billion, nine hundred forty-four million, five hundred seventy-seven thousand, nine hundred three".