858501008542 has 8 divisors (see below), whose sum is σ = 1363501601856. Its totient is φ = 404000474592.

The previous prime is 858501008437. The next prime is 858501008543. The reversal of 858501008542 is 245800105858.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 858501008492 and 858501008501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (858501008543) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12625014798 + ... + 12625014865.

It is an arithmetic number, because the mean of its divisors is an integer number (170437700232).

Almost surely, 2^858501008542 is an apocalyptic number.

858501008542 is a deficient number, since it is larger than the sum of its proper divisors (505000593314).

858501008542 is a wasteful number, since it uses less digits than its factorization.

858501008542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25250029682.

The product of its (nonzero) digits is 512000, while the sum is 46.

The spelling of 858501008542 in words is "eight hundred fifty-eight billion, five hundred one million, eight thousand, five hundred forty-two".