986933505339689 has 4 divisors (see below), whose sum is σ = 986995933940820. Its totient is φ = 986871076738560.

The previous prime is 986933505339667. The next prime is 986933505339739.

986933505339689 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 515768309144089 + 471165196195600 = 22710533^2 + 21706340^2 .

It is a cyclic number.

It is not a de Polignac number, because 986933505339689 - 2⁴⁰ = 985833993711913 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 986933505339689.

It is not an unprimeable number, because it can be changed into a prime (986933505339629) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31214276852 + ... + 31214308469.

It is an arithmetic number, because the mean of its divisors is an integer number (246748983485205).

Almost surely, 2^{986933505339689} is an apocalyptic number.

It is an amenable number.

986933505339689 is a deficient number, since it is larger than the sum of its proper divisors (62428601131).

986933505339689 is a wasteful number, since it uses less digits than its factorization.

986933505339689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62428601130.

The product of its (nonzero) digits is 30611001600, while the sum is 86.

The spelling of 986933505339689 in words is "nine hundred eighty-six trillion, nine hundred thirty-three billion, five hundred five million, three hundred thirty-nine thousand, six hundred eighty-nine".