43914795421 has 4 divisors (see below), whose sum is σ = 50188337632. Its totient is φ = 37641253212.

The previous prime is 43914795401. The next prime is 43914795427. The reversal of 43914795421 is 12459741934.

43914795421 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 a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 43914795421 - 2⁵ = 43914795389 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 (43914795427) 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, 3136771095 + ... + 3136771108.

It is an arithmetic number, because the mean of its divisors is an integer number (12547084408).

Almost surely, 2^43914795421 is an apocalyptic number.

It is an amenable number.

43914795421 is a deficient number, since it is larger than the sum of its proper divisors (6273542211).

43914795421 is an equidigital number, since it uses as much as digits as its factorization.

43914795421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6273542210.

The product of its digits is 1088640, while the sum is 49.

The spelling of 43914795421 in words is "forty-three billion, nine hundred fourteen million, seven hundred ninety-five thousand, four hundred twenty-one".