2947747394056 has 32 divisors (see below), whose sum is σ = 5872143591000. Its totient is φ = 1384589638656.

The previous prime is 2947747393999. The next prime is 2947747394057. The reversal of 2947747394056 is 6504937477492.

2947747394056 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 2945994632100 + 1752761956 = 1716390^2 + 41866^2 .

It is a super-2 number, since 2×2947747394056² (a number of 26 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2947747393982 and 2947747394000.

It is not an unprimeable number, because it can be changed into a prime (2947747394057) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 171691521 + ... + 171708688.

Almost surely, 2^{2947747394056} is an apocalyptic number.

It is an amenable number.

2947747394056 is a deficient number, since it is larger than the sum of its proper divisors (2924396196944).

2947747394056 is a wasteful number, since it uses less digits than its factorization.

2947747394056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 343400281 (or 343400277 counting only the distinct ones).

The product of its (nonzero) digits is 320060160, while the sum is 67.

The spelling of 2947747394056 in words is "two trillion, nine hundred forty-seven billion, seven hundred forty-seven million, three hundred ninety-four thousand, fifty-six".