9378172472 has 8 divisors (see below), whose sum is σ = 17584073400. Its totient is φ = 4689086232.

The previous prime is 9378172457. The next prime is 9378172537. The reversal of 9378172472 is 2742718739.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 9378172472.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 586135772 + ... + 586135787.

It is an arithmetic number, because the mean of its divisors is an integer number (2198009175).

Almost surely, 2^9378172472 is an apocalyptic number.

It is an amenable number.

9378172472 is a deficient number, since it is larger than the sum of its proper divisors (8205900928).

9378172472 is a wasteful number, since it uses less digits than its factorization.

9378172472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1172271565 (or 1172271561 counting only the distinct ones).

The product of its digits is 1185408, while the sum is 50.

The square root of 9378172472 is about 96840.9648444293. The cubic root of 9378172472 is about 2108.8194823430.

The spelling of 9378172472 in words is "nine billion, three hundred seventy-eight million, one hundred seventy-two thousand, four hundred seventy-two".