47428424551 has 4 divisors (see below), whose sum is σ = 47430207072. Its totient is φ = 47426642032.

The previous prime is 47428424513. The next prime is 47428424609. The reversal of 47428424551 is 15542482474.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15542482474 = 2 ⋅7771241237.

It is a cyclic number.

It is not a de Polignac number, because 47428424551 - 2¹³ = 47428416359 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 (47428424501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 850735 + ... + 904768.

It is an arithmetic number, because the mean of its divisors is an integer number (11857551768).

Almost surely, 2^47428424551 is an apocalyptic number.

47428424551 is a deficient number, since it is larger than the sum of its proper divisors (1782521).

47428424551 is a wasteful number, since it uses less digits than its factorization.

47428424551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1782520.

The product of its digits is 1433600, while the sum is 46.

The spelling of 47428424551 in words is "forty-seven billion, four hundred twenty-eight million, four hundred twenty-four thousand, five hundred fifty-one".