8540722836978 has 32 divisors (see below), whose sum is σ = 17983570069440. Its totient is φ = 2696605228800.

The previous prime is 8540722836907. The next prime is 8540722836991. The reversal of 8540722836978 is 8796382270458.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5796075 + ... + 7118702.

It is an arithmetic number, because the mean of its divisors is an integer number (561986564670).

Almost surely, 2^{8540722836978} is an apocalyptic number.

8540722836978 is an abundant number, since it is smaller than the sum of its proper divisors (9442847232462).

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

8540722836978 is a wasteful number, since it uses less digits than its factorization.

8540722836978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12920602.

The product of its (nonzero) digits is 325140480, while the sum is 69.

The spelling of 8540722836978 in words is "eight trillion, five hundred forty billion, seven hundred twenty-two million, eight hundred thirty-six thousand, nine hundred seventy-eight".