986563731168 has 36 divisors (see below), whose sum is σ = 2805540611328. Its totient is φ = 328854576960.

The previous prime is 986563731151. The next prime is 986563731191. The reversal of 986563731168 is 861137365689.

986563731168 is a `hidden beast` number, since 9 + 8 + 6 + 563 + 7 + 3 + 1 + 1 + 68 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×986563731168² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1712783968 + ... + 1712784543.

It is an arithmetic number, because the mean of its divisors is an integer number (77931683648).

Almost surely, 2^986563731168 is an apocalyptic number.

It is an amenable number.

986563731168 is an abundant number, since it is smaller than the sum of its proper divisors (1818976880160).

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

986563731168 is a wasteful number, since it uses less digits than its factorization.

986563731168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3425568527 (or 3425568516 counting only the distinct ones).

The product of its digits is 39191040, while the sum is 63.

It can be divided in two parts, 986563 and 731168, that added together give a triangular number (1717731 = T₁₈₅₃).

The spelling of 986563731168 in words is "nine hundred eighty-six billion, five hundred sixty-three million, seven hundred thirty-one thousand, one hundred sixty-eight".