42179751976321 has 16 divisors (see below), whose sum is σ = 42980812237440. Its totient is φ = 41384823459840.

The previous prime is 42179751976277. The next prime is 42179751976333. The reversal of 42179751976321 is 12367915797124.

It is a cyclic number.

It is not a de Polignac number, because 42179751976321 - 2¹⁷ = 42179751845249 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42179751976391) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14086611 + ... + 16816423.

It is an arithmetic number, because the mean of its divisors is an integer number (2686300764840).

Almost surely, 2^{42179751976321} is an apocalyptic number.

It is an amenable number.

42179751976321 is a deficient number, since it is larger than the sum of its proper divisors (801060261119).

42179751976321 is a wasteful number, since it uses less digits than its factorization.

42179751976321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2730936.

The product of its digits is 40007520, while the sum is 64.

The spelling of 42179751976321 in words is "forty-two trillion, one hundred seventy-nine billion, seven hundred fifty-one million, nine hundred seventy-six thousand, three hundred twenty-one".