947712129903 has 48 divisors (see below), whose sum is σ = 1718980972800. Its totient is φ = 488776083840.

The previous prime is 947712129829. The next prime is 947712129907. The reversal of 947712129903 is 309921217749.

It is a happy number.

It is not a de Polignac number, because 947712129903 - 2¹⁶ = 947712064367 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 947712129903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (947712129907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4822918 + ... + 5015571.

It is an arithmetic number, because the mean of its divisors is an integer number (35812103600).

Almost surely, 2^947712129903 is an apocalyptic number.

947712129903 is a deficient number, since it is larger than the sum of its proper divisors (771268842897).

947712129903 is a wasteful number, since it uses less digits than its factorization.

947712129903 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9838652 (or 9838649 counting only the distinct ones).

The product of its (nonzero) digits is 1714608, while the sum is 54.

The spelling of 947712129903 in words is "nine hundred forty-seven billion, seven hundred twelve million, one hundred twenty-nine thousand, nine hundred three".