42661355513 has 8 divisors (see below), whose sum is σ = 48860240832. Its totient is φ = 36488571696.

The previous prime is 42661355507. The next prime is 42661355537. The reversal of 42661355513 is 31555316624.

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 42661355513 - 2⁸ = 42661355257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42661355543) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 6521870 + ... + 6528407.

It is an arithmetic number, because the mean of its divisors is an integer number (6107530104).

Almost surely, 2^42661355513 is an apocalyptic number.

It is an amenable number.

42661355513 is a deficient number, since it is larger than the sum of its proper divisors (6198885319).

42661355513 is a wasteful number, since it uses less digits than its factorization.

42661355513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13050751.

The product of its digits is 324000, while the sum is 41.

The spelling of 42661355513 in words is "forty-two billion, six hundred sixty-one million, three hundred fifty-five thousand, five hundred thirteen".