47547546418 has 4 divisors (see below), whose sum is σ = 71321319630. Its totient is φ = 23773773208.

The previous prime is 47547546413. The next prime is 47547546419. The reversal of 47547546418 is 81464574574.

It is a happy number.

47547546418 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 81464574574 = 2 ⋅40732287287.

It can be written as a sum of positive squares in only one way, i.e., 44983440649 + 2564105769 = 212093^2 + 50637^2 .

It is not an unprimeable number, because it can be changed into a prime (47547546413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11886886603 + ... + 11886886606.

Almost surely, 2^47547546418 is an apocalyptic number.

47547546418 is a deficient number, since it is larger than the sum of its proper divisors (23773773212).

47547546418 is a wasteful number, since it uses less digits than its factorization.

47547546418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23773773211.

The product of its digits is 15052800, while the sum is 55.

The spelling of 47547546418 in words is "forty-seven billion, five hundred forty-seven million, five hundred forty-six thousand, four hundred eighteen".