43478287201 has 4 divisors (see below), whose sum is σ = 43502619312. Its totient is φ = 43453955092.

The previous prime is 43478287159. The next prime is 43478287211. The reversal of 43478287201 is 10278287434.

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 a de Polignac number, because none of the positive numbers 2^k-43478287201 is a prime.

It is a super-2 number, since 2×43478287201² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43478287211) 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, 12163375 + ... + 12166948.

It is an arithmetic number, because the mean of its divisors is an integer number (10875654828).

Almost surely, 2^43478287201 is an apocalyptic number.

It is an amenable number.

43478287201 is a deficient number, since it is larger than the sum of its proper divisors (24332111).

43478287201 is a wasteful number, since it uses less digits than its factorization.

43478287201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24332110.

The product of its (nonzero) digits is 602112, while the sum is 46.

The spelling of 43478287201 in words is "forty-three billion, four hundred seventy-eight million, two hundred eighty-seven thousand, two hundred one".