8126108420 has 24 divisors (see below), whose sum is σ = 17189394264. Its totient is φ = 3226716416.

The previous prime is 8126108411. The next prime is 8126108539. The reversal of 8126108420 is 248016218.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 54523456 + 8071584964 = 7384^2 + 89842^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1480127 + ... + 1485606.

It is an arithmetic number, because the mean of its divisors is an integer number (716224761).

Almost surely, 2^8126108420 is an apocalyptic number.

It is an amenable number.

8126108420 is an abundant number, since it is smaller than the sum of its proper divisors (9063285844).

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

8126108420 is a wasteful number, since it uses less digits than its factorization.

8126108420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2965879 (or 2965877 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 32.

The square root of 8126108420 is about 90144.9300848362. The cubic root of 8126108420 is about 2010.4542936576.

The spelling of 8126108420 in words is "eight billion, one hundred twenty-six million, one hundred eight thousand, four hundred twenty".