47654687047281 has 4 divisors (see below), whose sum is σ = 63539582729712. Its totient is φ = 31769791364852.

The previous prime is 47654687047213. The next prime is 47654687047301. The reversal of 47654687047281 is 18274078645674.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 47654687047281 - 2³¹ = 47652539563633 is a prime.

It is a super-2 number, since 2×47654687047281² (a number of 28 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (47654687043281) 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, 7942447841211 + ... + 7942447841216.

It is an arithmetic number, because the mean of its divisors is an integer number (15884895682428).

Almost surely, 2^{47654687047281} is an apocalyptic number.

It is an amenable number.

47654687047281 is a deficient number, since it is larger than the sum of its proper divisors (15884895682431).

47654687047281 is a wasteful number, since it uses less digits than its factorization.

47654687047281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15884895682430.

The product of its (nonzero) digits is 505774080, while the sum is 69.

The spelling of 47654687047281 in words is "forty-seven trillion, six hundred fifty-four billion, six hundred eighty-seven million, forty-seven thousand, two hundred eighty-one".