47688351851 has 4 divisors (see below), whose sum is σ = 54500973552. Its totient is φ = 40875730152.

The previous prime is 47688351833. The next prime is 47688351859. The reversal of 47688351851 is 15815388674.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15815388674 = 2 ⋅7907694337.

It is a cyclic number.

It is not a de Polignac number, because 47688351851 - 2¹⁸ = 47688089707 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47688351859) 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, 3406310840 + ... + 3406310853.

It is an arithmetic number, because the mean of its divisors is an integer number (13625243388).

Almost surely, 2^47688351851 is an apocalyptic number.

47688351851 is a deficient number, since it is larger than the sum of its proper divisors (6812621701).

47688351851 is an equidigital number, since it uses as much as digits as its factorization.

47688351851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6812621700.

The product of its digits is 6451200, while the sum is 56.

The spelling of 47688351851 in words is "forty-seven billion, six hundred eighty-eight million, three hundred fifty-one thousand, eight hundred fifty-one".