43245681012 has 36 divisors (see below), whose sum is σ = 109459946596. Its totient is φ = 14396175360.

The previous prime is 43245681007. The next prime is 43245681041. The reversal of 43245681012 is 21018654234.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 25685190756 + 17560490256 = 160266^2 + 132516^2 .

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

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 766189 + ... + 820692.

Almost surely, 2^43245681012 is an apocalyptic number.

It is an amenable number.

43245681012 is an abundant number, since it is smaller than the sum of its proper divisors (66214265584).

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

43245681012 is a wasteful number, since it uses less digits than its factorization.

43245681012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1587648 (or 1587643 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

The spelling of 43245681012 in words is "forty-three billion, two hundred forty-five million, six hundred eighty-one thousand, twelve".