43612842261 has 4 divisors (see below), whose sum is σ = 58150456352. Its totient is φ = 29075228172.

The previous prime is 43612842241. The next prime is 43612842281. The reversal of 43612842261 is 16224821634.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (43612842241) and next prime (43612842281).

It is not a de Polignac number, because 43612842261 - 2⁶ = 43612842197 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 (43612842241) 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, 7268807041 + ... + 7268807046.

It is an arithmetic number, because the mean of its divisors is an integer number (14537614088).

Almost surely, 2^43612842261 is an apocalyptic number.

It is an amenable number.

43612842261 is a deficient number, since it is larger than the sum of its proper divisors (14537614091).

43612842261 is a wasteful number, since it uses less digits than its factorization.

43612842261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14537614090.

The product of its digits is 110592, while the sum is 39.

The spelling of 43612842261 in words is "forty-three billion, six hundred twelve million, eight hundred forty-two thousand, two hundred sixty-one".