43042040002 has 64 divisors (see below), whose sum is σ = 74185100640. Its totient is φ = 18553982976.

The previous prime is 43042039991. The next prime is 43042040123. The reversal of 43042040002 is 20004024034.

It can be written as a sum of positive squares in 16 ways, for example, as 7668329761 + 35373710241 = 87569^2 + 188079^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 38811024 + ... + 38812132.

Almost surely, 2^43042040002 is an apocalyptic number.

43042040002 is a deficient number, since it is larger than the sum of its proper divisors (31143060638).

43042040002 is a wasteful number, since it uses less digits than its factorization.

43042040002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1735.

The product of its (nonzero) digits is 768, while the sum is 19.

Adding to 43042040002 its reverse (20004024034), we get a palindrome (63046064036).

The spelling of 43042040002 in words is "forty-three billion, forty-two million, forty thousand, two".