43497661284 has 360 divisors, whose sum is σ = 147480886784. Its totient is φ = 10931500800.

The previous prime is 43497661243. The next prime is 43497661301. The reversal of 43497661284 is 48216679434.

43497661284 is a `hidden beast` number, since 4 + 3 + 497 + 66 + 12 + 84 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 43497661284.

It is an unprimeable number.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 8504712 + ... + 8509824.

Almost surely, 2^43497661284 is an apocalyptic number.

43497661284 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 43497661284, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73740443392).

43497661284 is an abundant number, since it is smaller than the sum of its proper divisors (103983225500).

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

43497661284 is a wasteful number, since it uses less digits than its factorization.

43497661284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5189 (or 5167 counting only the distinct ones).

The product of its digits is 6967296, while the sum is 54.

The spelling of 43497661284 in words is "forty-three billion, four hundred ninety-seven million, six hundred sixty-one thousand, two hundred eighty-four".