43040251015 has 8 divisors (see below), whose sum is σ = 51732013680. Its totient is φ = 34376392512.

The previous prime is 43040250989. The next prime is 43040251019. The reversal of 43040251015 is 51015204034.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 43040251015 - 2⁷ = 43040250887 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43040251019) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6972645 + ... + 6978814.

It is an arithmetic number, because the mean of its divisors is an integer number (6466501710).

Almost surely, 2^43040251015 is an apocalyptic number.

43040251015 is a deficient number, since it is larger than the sum of its proper divisors (8691762665).

43040251015 is a wasteful number, since it uses less digits than its factorization.

43040251015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13952081.

The product of its (nonzero) digits is 2400, while the sum is 25.

Adding to 43040251015 its reverse (51015204034), we get a palindrome (94055455049).

The spelling of 43040251015 in words is "forty-three billion, forty million, two hundred fifty-one thousand, fifteen".