8025780126 has 128 divisors (see below), whose sum is σ = 20954658816. Its totient is φ = 1991278080.

The previous prime is 8025780071. The next prime is 8025780127. The reversal of 8025780126 is 6210875208.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8025780127) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 760800 + ... + 771276.

It is an arithmetic number, because the mean of its divisors is an integer number (163708272).

Almost surely, 2^8025780126 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8025780126, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10477329408).

8025780126 is an abundant number, since it is smaller than the sum of its proper divisors (12928878690).

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

8025780126 is a wasteful number, since it uses less digits than its factorization.

8025780126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10586.

The product of its (nonzero) digits is 53760, while the sum is 39.

The square root of 8025780126 is about 89586.7184687552. The cubic root of 8025780126 is about 2002.1460402653.

The spelling of 8025780126 in words is "eight billion, twenty-five million, seven hundred eighty thousand, one hundred twenty-six".