286425221850 has 240 divisors, whose sum is σ = 806819574528. Its totient is φ = 75333576960.

The previous prime is 286425221839. The next prime is 286425221911. The reversal of 286425221850 is 58122524682.

286425221850 is a `hidden beast` number, since 2 + 8 + 6 + 42 + 522 + 1 + 85 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a junction number, because it is equal to n+sod(n) for n = 286425221796 and 286425221805.

It is an unprimeable number.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 90438967 + ... + 90442133.

Almost surely, 2^286425221850 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 286425221850, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (403409787264).

286425221850 is an abundant number, since it is smaller than the sum of its proper divisors (520394352678).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

286425221850 is a wasteful number, since it uses less digits than its factorization.

286425221850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3491 (or 3477 counting only the distinct ones).

The product of its (nonzero) digits is 614400, while the sum is 45.

The spelling of 286425221850 in words is "two hundred eighty-six billion, four hundred twenty-five million, two hundred twenty-one thousand, eight hundred fifty".