8426666250 has 320 divisors, whose sum is σ = 26114140800. Its totient is φ = 2001024000.

The previous prime is 8426666249. The next prime is 8426666263. The reversal of 8426666250 is 526666248.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

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 = 8426666196 and 8426666205.

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 10900864 + ... + 10901636.

It is an arithmetic number, because the mean of its divisors is an integer number (81606690).

Almost surely, 2^8426666250 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8426666250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13057070400).

8426666250 is an abundant number, since it is smaller than the sum of its proper divisors (17687474550).

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

8426666250 is a wasteful number, since it uses less digits than its factorization.

8426666250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 840 (or 819 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 45.

The square root of 8426666250 is about 91796.8749468085. The cubic root of 8426666250 is about 2034.9415111966.

The spelling of 8426666250 in words is "eight billion, four hundred twenty-six million, six hundred sixty-six thousand, two hundred fifty".