986457688561 has 8 divisors (see below), whose sum is σ = 1001806393824. Its totient is φ = 971127379200.

The previous prime is 986457688523. The next prime is 986457688577. The reversal of 986457688561 is 165886754689.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 986457688561 - 2²¹ = 986455591409 is a prime.

It is a super-2 number, since 2×986457688561² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (986457688361) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4490875 + ... + 4705408.

It is an arithmetic number, because the mean of its divisors is an integer number (125225799228).

Almost surely, 2^986457688561 is an apocalyptic number.

It is an amenable number.

986457688561 is a deficient number, since it is larger than the sum of its proper divisors (15348705263).

986457688561 is a wasteful number, since it uses less digits than its factorization.

986457688561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9197951.

The product of its digits is 696729600, while the sum is 73.

The spelling of 986457688561 in words is "nine hundred eighty-six billion, four hundred fifty-seven million, six hundred eighty-eight thousand, five hundred sixty-one".