42859964986021 has 8 divisors (see below), whose sum is σ = 43015500692640. Its totient is φ = 42704435082768.

The previous prime is 42859964986001. The next prime is 42859964986043. The reversal of 42859964986021 is 12068946995824.

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 42859964986021 - 2⁵ = 42859964985989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42859964986001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13630590 + ... + 16477648.

It is an arithmetic number, because the mean of its divisors is an integer number (5376937586580).

Almost surely, 2^{42859964986021} is an apocalyptic number.

It is an amenable number.

42859964986021 is a deficient number, since it is larger than the sum of its proper divisors (155535706619).

42859964986021 is a wasteful number, since it uses less digits than its factorization.

42859964986021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2901683.

The product of its (nonzero) digits is 537477120, while the sum is 73.

The spelling of 42859964986021 in words is "forty-two trillion, eight hundred fifty-nine billion, nine hundred sixty-four million, nine hundred eighty-six thousand, twenty-one".