43427220670564 has 48 divisors (see below), whose sum is σ = 78405994050048. Its totient is φ = 21030847492608.

The previous prime is 43427220670549. The next prime is 43427220670567. The reversal of 43427220670564 is 46507602272434.

43427220670564 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×43427220670564² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (43427220670567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1049275479 + ... + 1049316865.

It is an arithmetic number, because the mean of its divisors is an integer number (1633458209376).

Almost surely, 2^{43427220670564} is an apocalyptic number.

It is an amenable number.

43427220670564 is a deficient number, since it is larger than the sum of its proper divisors (34978773379484).

43427220670564 is a wasteful number, since it uses less digits than its factorization.

43427220670564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73444 (or 73442 counting only the distinct ones).

The product of its (nonzero) digits is 13547520, while the sum is 52.

It can be divided in two parts, 434272 and 20670564, that added together give a square (21104836 = 4594²).

The spelling of 43427220670564 in words is "forty-three trillion, four hundred twenty-seven billion, two hundred twenty million, six hundred seventy thousand, five hundred sixty-four".