8425001000 has 128 divisors (see below), whose sum is σ = 21310248960. Its totient is φ = 3099168000.

The previous prime is 8425000979. The next prime is 8425001009. The reversal of 8425001000 is 1005248.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (8425001009) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3989945 + ... + 3992055.

It is an arithmetic number, because the mean of its divisors is an integer number (166486320).

Almost surely, 2^8425001000 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8425001000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10655124480).

8425001000 is an abundant number, since it is smaller than the sum of its proper divisors (12885247960).

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

8425001000 is a wasteful number, since it uses less digits than its factorization.

8425001000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2452 (or 2438 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 8425001000 is about 91787.8042007760. The cubic root of 8425001000 is about 2034.8074562218.

Adding to 8425001000 its reverse (1005248), we get a palindrome (8426006248).

The spelling of 8425001000 in words is "eight billion, four hundred twenty-five million, one thousand".