8462581540 has 48 divisors (see below), whose sum is σ = 20859132672. Its totient is φ = 2823037056.

The previous prime is 8462581537. The next prime is 8462581541. The reversal of 8462581540 is 451852648.

It is a super-2 number, since 2×8462581540² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (8462581541) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 811672 + ... + 822031.

It is an arithmetic number, because the mean of its divisors is an integer number (434565264).

Almost surely, 2^8462581540 is an apocalyptic number.

It is an amenable number.

8462581540 is an abundant number, since it is smaller than the sum of its proper divisors (12396551132).

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

8462581540 is a wasteful number, since it uses less digits than its factorization.

8462581540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1633756 (or 1633754 counting only the distinct ones).

The product of its (nonzero) digits is 307200, while the sum is 43.

The square root of 8462581540 is about 91992.2906552500. The cubic root of 8462581540 is about 2037.8284546578.

The spelling of 8462581540 in words is "eight billion, four hundred sixty-two million, five hundred eighty-one thousand, five hundred forty".