43927492689 has 6 divisors (see below), whose sum is σ = 63450822786. Its totient is φ = 29284995120.

The previous prime is 43927492667. The next prime is 43927492711. The reversal of 43927492689 is 98629472934.

43927492689 is a `hidden beast` number, since 43 + 9 + 27 + 492 + 6 + 89 = 666.

It is an interprime number because it is at equal distance from previous prime (43927492667) and next prime (43927492711).

It can be written as a sum of positive squares in only one way, i.e., 43491017025 + 436475664 = 208545^2 + 20892^2 .

It is not a de Polignac number, because 43927492689 - 2⁵ = 43927492657 is a prime.

It is a super-2 number, since 2×43927492689² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (43927492639) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2440416252 + ... + 2440416269.

It is an arithmetic number, because the mean of its divisors is an integer number (10575137131).

Almost surely, 2^43927492689 is an apocalyptic number.

It is an amenable number.

43927492689 is a deficient number, since it is larger than the sum of its proper divisors (19523330097).

43927492689 is a wasteful number, since it uses less digits than its factorization.

43927492689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4880832527 (or 4880832524 counting only the distinct ones).

The product of its digits is 47029248, while the sum is 63.

The spelling of 43927492689 in words is "forty-three billion, nine hundred twenty-seven million, four hundred ninety-two thousand, six hundred eighty-nine".