8021540682 has 24 divisors (see below), whose sum is σ = 17381767104. Its totient is φ = 2673575784.

The previous prime is 8021540663. The next prime is 8021540699. The reversal of 8021540682 is 2860451208.

It is a super-2 number, since 2×8021540682² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 246453 + ... + 277095.

It is an arithmetic number, because the mean of its divisors is an integer number (724240296).

Almost surely, 2^8021540682 is an apocalyptic number.

8021540682 is an abundant number, since it is smaller than the sum of its proper divisors (9360226422).

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

8021540682 is a wasteful number, since it uses less digits than its factorization.

8021540682 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45194 (or 45191 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 36.

The square root of 8021540682 is about 89563.0542243843. The cubic root of 8021540682 is about 2001.7934481245.

The spelling of 8021540682 in words is "eight billion, twenty-one million, five hundred forty thousand, six hundred eighty-two".