8978394536111 has 16 divisors (see below), whose sum is σ = 12054907350528. Its totient is φ = 6457986079200.

The previous prime is 8978394536077. The next prime is 8978394536123. The reversal of 8978394536111 is 1116354938798.

It is a cyclic number.

It is not a de Polignac number, because 8978394536111 - 2¹⁴ = 8978394519727 is a prime.

It is a super-2 number, since 2×8978394536111² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8978394536141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4484711555 + ... + 4484713556.

It is an arithmetic number, because the mean of its divisors is an integer number (753431709408).

Almost surely, 2^{8978394536111} is an apocalyptic number.

8978394536111 is a deficient number, since it is larger than the sum of its proper divisors (3076512814417).

8978394536111 is a wasteful number, since it uses less digits than its factorization.

8978394536111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8969425142.

The product of its digits is 39191040, while the sum is 65.

The spelling of 8978394536111 in words is "eight trillion, nine hundred seventy-eight billion, three hundred ninety-four million, five hundred thirty-six thousand, one hundred eleven".