42656013515 has 4 divisors (see below), whose sum is σ = 51187216224. Its totient is φ = 34124810808.

The previous prime is 42656013503. The next prime is 42656013541. The reversal of 42656013515 is 51531065624.

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 42656013515 - 2⁶ = 42656013451 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4265601347 + ... + 4265601356.

It is an arithmetic number, because the mean of its divisors is an integer number (12796804056).

Almost surely, 2^42656013515 is an apocalyptic number.

42656013515 is a deficient number, since it is larger than the sum of its proper divisors (8531202709).

42656013515 is an equidigital number, since it uses as much as digits as its factorization.

42656013515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8531202708.

The product of its (nonzero) digits is 108000, while the sum is 38.

The spelling of 42656013515 in words is "forty-two billion, six hundred fifty-six million, thirteen thousand, five hundred fifteen".