7847999999946 has 24 divisors (see below), whose sum is σ = 17743304348640. Its totient is φ = 2502260869416.

The previous prime is 7847999999809. The next prime is 7847999999953. The reversal of 7847999999946 is 6499999997487.

It is a super-2 number, since 2×7847999999946² (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 11 ways as a sum of consecutive naturals, for example, 9478260456 + ... + 9478261283.

It is an arithmetic number, because the mean of its divisors is an integer number (739304347860).

Almost surely, 2^{7847999999946} is an apocalyptic number.

7847999999946 is an abundant number, since it is smaller than the sum of its proper divisors (9895304348694).

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

7847999999946 is a wasteful number, since it uses less digits than its factorization.

7847999999946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18956521770 (or 18956521767 counting only the distinct ones).

The product of its digits is 179992689408, while the sum is 99.

The spelling of 7847999999946 in words is "seven trillion, eight hundred forty-seven billion, nine hundred ninety-nine million, nine hundred ninety-nine thousand, nine hundred forty-six".