47556643101211 has 4 divisors (see below), whose sum is σ = 47556677498400. Its totient is φ = 47556608704024.

The previous prime is 47556643101181. The next prime is 47556643101269. The reversal of 47556643101211 is 11210134665574.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-47556643101211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47556643101311) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15033916 + ... + 17920153.

It is an arithmetic number, because the mean of its divisors is an integer number (11889169374600).

Almost surely, 2^{47556643101211} is an apocalyptic number.

47556643101211 is a deficient number, since it is larger than the sum of its proper divisors (34397189).

47556643101211 is a wasteful number, since it uses less digits than its factorization.

47556643101211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34397188.

The product of its (nonzero) digits is 604800, while the sum is 46.

Adding to 47556643101211 its reverse (11210134665574), we get a palindrome (58766777766785).

The spelling of 47556643101211 in words is "forty-seven trillion, five hundred fifty-six billion, six hundred forty-three million, one hundred one thousand, two hundred eleven".