8126681540 has 48 divisors (see below), whose sum is σ = 17824665600. Its totient is φ = 3106435200.

The previous prime is 8126681483. The next prime is 8126681567. The reversal of 8126681540 is 451866218.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 521786 + ... + 537134.

It is an arithmetic number, because the mean of its divisors is an integer number (371347200).

Almost surely, 2^8126681540 is an apocalyptic number.

It is an amenable number.

8126681540 is an abundant number, since it is smaller than the sum of its proper divisors (9697984060).

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

8126681540 is a wasteful number, since it uses less digits than its factorization.

8126681540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16532 (or 16530 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 41.

The square root of 8126681540 is about 90148.1089097270. The cubic root of 8126681540 is about 2010.5015571372.

The spelling of 8126681540 in words is "eight billion, one hundred twenty-six million, six hundred eighty-one thousand, five hundred forty".