860931987336 has 24 divisors (see below), whose sum is σ = 2331690799230. Its totient is φ = 286977329088.

The previous prime is 860931987323. The next prime is 860931987337. The reversal of 860931987336 is 633789139068.

860931987336 is a `hidden beast` number, since 8 + 609 + 3 + 19 + 8 + 7 + 3 + 3 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 813795235236 + 47136752100 = 902106^2 + 217110^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-3 number, since 3×860931987336³ (a number of 37 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (860931987337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5978694285 + ... + 5978694428.

Almost surely, 2^860931987336 is an apocalyptic number.

It is an amenable number.

860931987336 is an abundant number, since it is smaller than the sum of its proper divisors (1470758811894).

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

860931987336 is a wasteful number, since it uses less digits than its factorization.

860931987336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11957388725 (or 11957388718 counting only the distinct ones).

The product of its (nonzero) digits is 35271936, while the sum is 63.

The spelling of 860931987336 in words is "eight hundred sixty billion, nine hundred thirty-one million, nine hundred eighty-seven thousand, three hundred thirty-six".