858850279064 has 32 divisors (see below), whose sum is σ = 1618061203440. Its totient is φ = 427369574400.

The previous prime is 858850279061. The next prime is 858850279081. The reversal of 858850279064 is 460972058858.

It is a junction number, because it is equal to n+sod(n) for n = 858850278988 and 858850279006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (858850279061) 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, 2887112 + ... + 3170664.

Almost surely, 2^858850279064 is an apocalyptic number.

It is an amenable number.

858850279064 is a deficient number, since it is larger than the sum of its proper divisors (759210924376).

858850279064 is a wasteful number, since it uses less digits than its factorization.

858850279064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285371 (or 285367 counting only the distinct ones).

The product of its (nonzero) digits is 38707200, while the sum is 62.

The spelling of 858850279064 in words is "eight hundred fifty-eight billion, eight hundred fifty million, two hundred seventy-nine thousand, sixty-four".