8125919980 has 24 divisors (see below), whose sum is σ = 17070746112. Its totient is φ = 3249165312.

The previous prime is 8125919903. The next prime is 8125919993. The reversal of 8125919980 is 899195218.

It is a hoax number, since the sum of its digits (52) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18732 + ... + 128851.

It is an arithmetic number, because the mean of its divisors is an integer number (711281088).

Almost surely, 2^8125919980 is an apocalyptic number.

It is an amenable number.

8125919980 is an abundant number, since it is smaller than the sum of its proper divisors (8944826132).

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

8125919980 is a wasteful number, since it uses less digits than its factorization.

8125919980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150345 (or 150343 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 52.

The square root of 8125919980 is about 90143.8848730184. The cubic root of 8125919980 is about 2010.4387530931.

The spelling of 8125919980 in words is "eight billion, one hundred twenty-five million, nine hundred nineteen thousand, nine hundred eighty".