43243243351615 has 16 divisors (see below), whose sum is σ = 52779231555840. Its totient is φ = 34003823224320.

The previous prime is 43243243351519. The next prime is 43243243351621. The reversal of 43243243351615 is 51615334234234.

It is not a de Polignac number, because 43243243351615 - 2³⁷ = 43105804398143 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48824874 + ... + 49702663.

It is an arithmetic number, because the mean of its divisors is an integer number (3298701972240).

Almost surely, 2^{43243243351615} is an apocalyptic number.

43243243351615 is a deficient number, since it is larger than the sum of its proper divisors (9535988204225).

43243243351615 is a wasteful number, since it uses less digits than its factorization.

43243243351615 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98529042.

The product of its digits is 3110400, while the sum is 46.

Adding to 43243243351615 its reverse (51615334234234), we get a palindrome (94858577585849).

The spelling of 43243243351615 in words is "forty-three trillion, two hundred forty-three billion, two hundred forty-three million, three hundred fifty-one thousand, six hundred fifteen".