47814747481447 has 6 divisors (see below), whose sum is σ = 50792828639768. Its totient is φ = 45002115276384.

The previous prime is 47814747481441. The next prime is 47814747481493. The reversal of 47814747481447 is 74418474741874.

It is a de Polignac number, because none of the positive numbers 2^k-47814747481447 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47814747481441) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 82724476323 + ... + 82724476900.

Almost surely, 2^{47814747481447} is an apocalyptic number.

47814747481447 is a deficient number, since it is larger than the sum of its proper divisors (2978081158321).

47814747481447 is a wasteful number, since it uses less digits than its factorization.

47814747481447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165448953257 (or 165448953240 counting only the distinct ones).

The product of its digits is 629407744, while the sum is 70.

The spelling of 47814747481447 in words is "forty-seven trillion, eight hundred fourteen billion, seven hundred forty-seven million, four hundred eighty-one thousand, four hundred forty-seven".