43815106012804 has 81 divisors (see below), whose sum is σ = 89484037968549. Its totient is φ = 18717256568640.

The previous prime is 43815106012793. The next prime is 43815106012807. The reversal of 43815106012804 is 40821060151834.

The square root of 43815106012804 is 6619298.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 12460123412100 + 31354982600704 = 3529890^2 + 5599552^2 .

It is a super-2 number, since 2×43815106012804² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (43815106012807) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 39940843584 + ... + 39940844680.

Almost surely, 2^{43815106012804} is an apocalyptic number.

43815106012804 is the 6619298-th square number.

It is an amenable number.

43815106012804 is an abundant number, since it is smaller than the sum of its proper divisors (45668931955745).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

43815106012804 is an frugal number, since it uses more digits than its factorization.

43815106012804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3074 (or 1537 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 43.

The spelling of 43815106012804 in words is "forty-three trillion, eight hundred fifteen billion, one hundred six million, twelve thousand, eight hundred four".