42947836869658 has 32 divisors (see below), whose sum is σ = 78066944287488. Its totient is φ = 17298784608000.

The previous prime is 42947836869647. The next prime is 42947836869719. The reversal of 42947836869658 is 85696863874924.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 128544358 + ... + 128878033.

It is an arithmetic number, because the mean of its divisors is an integer number (2439592008984).

Almost surely, 2^{42947836869658} is an apocalyptic number.

42947836869658 is a deficient number, since it is larger than the sum of its proper divisors (35119107417830).

42947836869658 is a wasteful number, since it uses less digits than its factorization.

42947836869658 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257423118.

The product of its digits is 30098718720, while the sum is 85.

The spelling of 42947836869658 in words is "forty-two trillion, nine hundred forty-seven billion, eight hundred thirty-six million, eight hundred sixty-nine thousand, six hundred fifty-eight".