1515432042215 has 48 divisors (see below), whose sum is σ = 2278849940640. Its totient is φ = 958921286400.

The previous prime is 1515432042199. The next prime is 1515432042217. The reversal of 1515432042215 is 5122402345151.

It is not a de Polignac number, because 1515432042215 - 2⁴ = 1515432042199 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1515432042217) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 10441616 + ... + 10585754.

It is an arithmetic number, because the mean of its divisors is an integer number (47476040430).

Almost surely, 2^{1515432042215} is an apocalyptic number.

1515432042215 is a deficient number, since it is larger than the sum of its proper divisors (763417898425).

1515432042215 is a wasteful number, since it uses less digits than its factorization.

1515432042215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147472 (or 147465 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 35.

Adding to 1515432042215 its reverse (5122402345151), we get a palindrome (6637834387366).

The spelling of 1515432042215 in words is "one trillion, five hundred fifteen billion, four hundred thirty-two million, forty-two thousand, two hundred fifteen".