42661318458 has 32 divisors (see below), whose sum is σ = 93300391872. Its totient is φ = 12896956800.

The previous prime is 42661318433. The next prime is 42661318471. The reversal of 42661318458 is 85481316624.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 739891 + ... + 795462.

It is an arithmetic number, because the mean of its divisors is an integer number (2915637246).

Almost surely, 2^42661318458 is an apocalyptic number.

42661318458 is an abundant number, since it is smaller than the sum of its proper divisors (50639073414).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42661318458 is a wasteful number, since it uses less digits than its factorization.

42661318458 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1535790.

The product of its digits is 1105920, while the sum is 48.

The spelling of 42661318458 in words is "forty-two billion, six hundred sixty-one million, three hundred eighteen thousand, four hundred fifty-eight".