47378824123537 has 4 divisors (see below), whose sum is σ = 47378854944256. Its totient is φ = 47378793302820.

The previous prime is 47378824123531. The next prime is 47378824123583. The reversal of 47378824123537 is 73532142887374.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 47378824123537 - 2¹⁹ = 47378823599249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47378824123531) 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, 12976353 + ... + 16221694.

It is an arithmetic number, because the mean of its divisors is an integer number (11844713736064).

Almost surely, 2^{47378824123537} is an apocalyptic number.

It is an amenable number.

47378824123537 is a deficient number, since it is larger than the sum of its proper divisors (30820719).

47378824123537 is a wasteful number, since it uses less digits than its factorization.

47378824123537 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30820718.

The product of its digits is 189665280, while the sum is 64.

The spelling of 47378824123537 in words is "forty-seven trillion, three hundred seventy-eight billion, eight hundred twenty-four million, one hundred twenty-three thousand, five hundred thirty-seven".