858425109250 has 32 divisors (see below), whose sum is σ = 1607605908480. Its totient is φ = 343234551600.

The previous prime is 858425109247. The next prime is 858425109253. The reversal of 858425109250 is 52901524858.

It is an interprime number because it is at equal distance from previous prime (858425109247) and next prime (858425109253).

It is a junction number, because it is equal to n+sod(n) for n = 858425109194 and 858425109203.

It is not an unprimeable number, because it can be changed into a prime (858425109253) 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, 41442 + ... + 1310941.

It is an arithmetic number, because the mean of its divisors is an integer number (50237684640).

Almost surely, 2^858425109250 is an apocalyptic number.

858425109250 is a deficient number, since it is larger than the sum of its proper divisors (749180799230).

858425109250 is a wasteful number, since it uses less digits than its factorization.

858425109250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1354939 (or 1354929 counting only the distinct ones).

The product of its (nonzero) digits is 1152000, while the sum is 49.

The spelling of 858425109250 in words is "eight hundred fifty-eight billion, four hundred twenty-five million, one hundred nine thousand, two hundred fifty".