47918144427 has 16 divisors (see below), whose sum is σ = 64507441152. Its totient is φ = 31638466080.

The previous prime is 47918144399. The next prime is 47918144429. The reversal of 47918144427 is 72444181974.

It is a happy number.

47918144427 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 47918144427 - 2¹⁴ = 47918128043 is a prime.

It is a super-2 number, since 2×47918144427² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 47918144427.

It is not an unprimeable number, because it can be changed into a prime (47918144429) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21099 + ... + 310292.

It is an arithmetic number, because the mean of its divisors is an integer number (4031715072).

Almost surely, 2^47918144427 is an apocalyptic number.

47918144427 is a deficient number, since it is larger than the sum of its proper divisors (16589296725).

47918144427 is a wasteful number, since it uses less digits than its factorization.

47918144427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 331858.

The product of its digits is 1806336, while the sum is 51.

The spelling of 47918144427 in words is "forty-seven billion, nine hundred eighteen million, one hundred forty-four thousand, four hundred twenty-seven".