2947747394055 has 16 divisors (see below), whose sum is σ = 4716744923520. Its totient is φ = 1572015579168.

The previous prime is 2947747393999. The next prime is 2947747394057. The reversal of 2947747394055 is 5504937477492.

It is not a de Polignac number, because 2947747394055 - 2²³ = 2947739005447 is a prime.

It is a congruent number.

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

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7063165 + ... + 7468854.

It is an arithmetic number, because the mean of its divisors is an integer number (294796557720).

Almost surely, 2^{2947747394055} is an apocalyptic number.

2947747394055 is a deficient number, since it is larger than the sum of its proper divisors (1768997529465).

2947747394055 is a wasteful number, since it uses less digits than its factorization.

2947747394055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14545550.

The product of its (nonzero) digits is 266716800, while the sum is 66.

The spelling of 2947747394055 in words is "two trillion, nine hundred forty-seven billion, seven hundred forty-seven million, three hundred ninety-four thousand, fifty-five".