9378809372 has 12 divisors (see below), whose sum is σ = 16418320800. Its totient is φ = 4687860576.

The previous prime is 9378809371. The next prime is 9378809381. The reversal of 9378809372 is 2739088739.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9378809371) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 372308 + ... + 396699.

It is an arithmetic number, because the mean of its divisors is an integer number (1368193400).

Almost surely, 2^9378809372 is an apocalyptic number.

It is an amenable number.

9378809372 is a deficient number, since it is larger than the sum of its proper divisors (7039511428).

9378809372 is a wasteful number, since it uses less digits than its factorization.

9378809372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 772060 (or 772058 counting only the distinct ones).

The product of its (nonzero) digits is 4572288, while the sum is 56.

The square root of 9378809372 is about 96844.2531697158. The cubic root of 9378809372 is about 2108.8672200278.

The spelling of 9378809372 in words is "nine billion, three hundred seventy-eight million, eight hundred nine thousand, three hundred seventy-two".