8147304542640 has 80 divisors (see below), whose sum is σ = 25258686706656. Its totient is φ = 2172438835200.

The previous prime is 8147304542621. The next prime is 8147304542683. The reversal of 8147304542640 is 462454037418.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 8147304542640.

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, 1614520 + ... + 4347560.

Almost surely, 2^{8147304542640} is an apocalyptic number.

8147304542640 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

8147304542640 is an abundant number, since it is smaller than the sum of its proper divisors (17111382164016).

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

8147304542640 is a wasteful number, since it uses less digits than its factorization.

8147304542640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2745478 (or 2745472 counting only the distinct ones).

The product of its (nonzero) digits is 2580480, while the sum is 48.

The spelling of 8147304542640 in words is "eight trillion, one hundred forty-seven billion, three hundred four million, five hundred forty-two thousand, six hundred forty".