42851017700086 has 4 divisors (see below), whose sum is σ = 64276526550132. Its totient is φ = 21425508850042.

The previous prime is 42851017699999. The next prime is 42851017700111. The reversal of 42851017700086 is 68000771015824.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10712754425020 + ... + 10712754425023.

It is an arithmetic number, because the mean of its divisors is an integer number (16069131637533).

Almost surely, 2^{42851017700086} is an apocalyptic number.

42851017700086 is a deficient number, since it is larger than the sum of its proper divisors (21425508850046).

42851017700086 is a wasteful number, since it uses less digits than its factorization.

42851017700086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21425508850045.

The product of its (nonzero) digits is 752640, while the sum is 49.

The spelling of 42851017700086 in words is "forty-two trillion, eight hundred fifty-one billion, seventeen million, seven hundred thousand, eighty-six".