8236578742506 has 48 divisors (see below), whose sum is σ = 18155215091520. Its totient is φ = 2697977462400.

The previous prime is 8236578742499. The next prime is 8236578742529. The reversal of 8236578742506 is 6052478756328.

8236578742506 is a `hidden beast` number, since 8 + 2 + 3 + 6 + 5 + 7 + 87 + 42 + 506 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1371906 + ... + 4284306.

It is an arithmetic number, because the mean of its divisors is an integer number (378233647740).

Almost surely, 2^{8236578742506} is an apocalyptic number.

8236578742506 is an abundant number, since it is smaller than the sum of its proper divisors (9918636349014).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8236578742506 is a wasteful number, since it uses less digits than its factorization.

8236578742506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2915131 (or 2915128 counting only the distinct ones).

The product of its (nonzero) digits is 135475200, while the sum is 63.

The spelling of 8236578742506 in words is "eight trillion, two hundred thirty-six billion, five hundred seventy-eight million, seven hundred forty-two thousand, five hundred six".