9128742436 has 24 divisors (see below), whose sum is σ = 17431666560. Its totient is φ = 4148460000.

The previous prime is 9128742397. The next prime is 9128742457. The reversal of 9128742436 is 6342478219.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 187210 + ... + 230878.

It is an arithmetic number, because the mean of its divisors is an integer number (726319440).

Almost surely, 2^9128742436 is an apocalyptic number.

It is an amenable number.

9128742436 is a deficient number, since it is larger than the sum of its proper divisors (8302924124).

9128742436 is a wasteful number, since it uses less digits than its factorization.

9128742436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48435 (or 48433 counting only the distinct ones).

The product of its digits is 580608, while the sum is 46.

The square root of 9128742436 is about 95544.4526699483. The cubic root of 9128742436 is about 2089.9552378561.

The spelling of 9128742436 in words is "nine billion, one hundred twenty-eight million, seven hundred forty-two thousand, four hundred thirty-six".