47238738637761 has 48 divisors (see below), whose sum is σ = 78838165261440. Its totient is φ = 26937677237760.

The previous prime is 47238738637759. The next prime is 47238738637799. The reversal of 47238738637761 is 16773683783274.

47238738637761 is a `hidden beast` number, since 4 + 7 + 238 + 7 + 386 + 3 + 7 + 7 + 6 + 1 = 666.

47238738637761 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 47238738637761 - 2¹ = 47238738637759 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 47238738637761.

It is not an unprimeable number, because it can be changed into a prime (47238738637061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1792756 + ... + 9883898.

It is an arithmetic number, because the mean of its divisors is an integer number (1642461776280).

Almost surely, 2^{47238738637761} is an apocalyptic number.

It is an amenable number.

47238738637761 is a deficient number, since it is larger than the sum of its proper divisors (31599426623679).

47238738637761 is a wasteful number, since it uses less digits than its factorization.

47238738637761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8094646 (or 8094643 counting only the distinct ones).

The product of its digits is 1194891264, while the sum is 72.

The spelling of 47238738637761 in words is "forty-seven trillion, two hundred thirty-eight billion, seven hundred thirty-eight million, six hundred thirty-seven thousand, seven hundred sixty-one".