43601234653 has 4 divisors (see below), whose sum is σ = 46166013180. Its totient is φ = 41036456128.

The previous prime is 43601234647. The next prime is 43601234683. The reversal of 43601234653 is 35643210634.

43601234653 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 35643210634 = 2 ⋅17821605317.

It can be written as a sum of positive squares in 2 ways, for example, as 40176995364 + 3424239289 = 200442^2 + 58517^2 .

It is not a de Polignac number, because 43601234653 - 2⁹ = 43601234141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43601234683) 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, 1282389238 + ... + 1282389271.

It is an arithmetic number, because the mean of its divisors is an integer number (11541503295).

Almost surely, 2^43601234653 is an apocalyptic number.

It is an amenable number.

43601234653 is a deficient number, since it is larger than the sum of its proper divisors (2564778527).

43601234653 is a wasteful number, since it uses less digits than its factorization.

43601234653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2564778526.

The product of its (nonzero) digits is 155520, while the sum is 37.

The spelling of 43601234653 in words is "forty-three billion, six hundred one million, two hundred thirty-four thousand, six hundred fifty-three".