8978311128860 has 24 divisors (see below), whose sum is σ = 18929570725296. Its totient is φ = 3577016384000.

The previous prime is 8978311128851. The next prime is 8978311128881. The reversal of 8978311128860 is 688211138798.

It is a super-2 number, since 2×8978311128860² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 8978311128793 and 8978311128802.

It is a congruent 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, 894249077 + ... + 894259116.

It is an arithmetic number, because the mean of its divisors is an integer number (788732113554).

Almost surely, 2^{8978311128860} is an apocalyptic number.

It is an amenable number.

8978311128860 is an abundant number, since it is smaller than the sum of its proper divisors (9951259596436).

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

8978311128860 is a wasteful number, since it uses less digits than its factorization.

8978311128860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1788508453 (or 1788508451 counting only the distinct ones).

The product of its (nonzero) digits is 9289728, while the sum is 62.

The spelling of 8978311128860 in words is "eight trillion, nine hundred seventy-eight billion, three hundred eleven million, one hundred twenty-eight thousand, eight hundred sixty".