7827147961284 has 12 divisors (see below), whose sum is σ = 18263345243024. Its totient is φ = 2609049320424.

The previous prime is 7827147961271. The next prime is 7827147961307. The reversal of 7827147961284 is 4821697417287.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×7827147961284² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 326131165042 + ... + 326131165065.

Almost surely, 2^{7827147961284} is an apocalyptic number.

It is an amenable number.

7827147961284 is an abundant number, since it is smaller than the sum of its proper divisors (10436197281740).

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

7827147961284 is a wasteful number, since it uses less digits than its factorization.

7827147961284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 652262330114 (or 652262330112 counting only the distinct ones).

The product of its digits is 75866112, while the sum is 66.

The spelling of 7827147961284 in words is "seven trillion, eight hundred twenty-seven billion, one hundred forty-seven million, nine hundred sixty-one thousand, two hundred eighty-four".