12500944379 has 16 divisors (see below), whose sum is σ = 16405889280. Its totient is φ = 9228310560.

The previous prime is 12500944343. The next prime is 12500944409. The reversal of 12500944379 is 97344900521.

Added to its reverse (97344900521) it gives a square (109845844900 = 331430²).

It is not a de Polignac number, because 12500944379 - 2⁸ = 12500944123 is a prime.

It is a super-3 number, since 3×12500944379³ (a number of 31 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (12500944979) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4270904 + ... + 4273829.

It is an arithmetic number, because the mean of its divisors is an integer number (1025368080).

Almost surely, 2^12500944379 is an apocalyptic number.

12500944379 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

12500944379 is a deficient number, since it is larger than the sum of its proper divisors (3904944901).

12500944379 is a wasteful number, since it uses less digits than its factorization.

12500944379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8544770.

The product of its (nonzero) digits is 272160, while the sum is 44.

Adding to 12500944379 its reverse (97344900521), we get a square (109845844900 = 331430²).

The spelling of 12500944379 in words is "twelve billion, five hundred million, nine hundred forty-four thousand, three hundred seventy-nine".