9170109815428 has 12 divisors (see below), whose sum is σ = 16319686960080. Its totient is φ = 4507342112552.

The previous prime is 9170109815387. The next prime is 9170109815441. The reversal of 9170109815428 is 8245189010719.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19428198526 + ... + 19428198997.

It is an arithmetic number, because the mean of its divisors is an integer number (1359973913340).

Almost surely, 2^{9170109815428} is an apocalyptic number.

It is an amenable number.

9170109815428 is a deficient number, since it is larger than the sum of its proper divisors (7149577144652).

9170109815428 is a wasteful number, since it uses less digits than its factorization.

9170109815428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38856397586 (or 38856397584 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 55.

The spelling of 9170109815428 in words is "nine trillion, one hundred seventy billion, one hundred nine million, eight hundred fifteen thousand, four hundred twenty-eight".