43515242400115 has 4 divisors (see below), whose sum is σ = 52218290880144. Its totient is φ = 34812193920088.

The previous prime is 43515242400109. The next prime is 43515242400131. The reversal of 43515242400115 is 51100424251534.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 43515242400115 - 2³ = 43515242400107 is a prime.

It is a super-2 number, since 2×43515242400115² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4351524240007 + ... + 4351524240016.

It is an arithmetic number, because the mean of its divisors is an integer number (13054572720036).

Almost surely, 2^{43515242400115} is an apocalyptic number.

43515242400115 is a deficient number, since it is larger than the sum of its proper divisors (8703048480029).

43515242400115 is an equidigital number, since it uses as much as digits as its factorization.

43515242400115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8703048480028.

The product of its (nonzero) digits is 96000, while the sum is 37.

Adding to 43515242400115 its reverse (51100424251534), we get a palindrome (94615666651649).

The spelling of 43515242400115 in words is "forty-three trillion, five hundred fifteen billion, two hundred forty-two million, four hundred thousand, one hundred fifteen".