47799567728639 has 4 divisors (see below), whose sum is σ = 47800456531056. Its totient is φ = 47798678926224.

The previous prime is 47799567728581. The next prime is 47799567728683. The reversal of 47799567728639 is 93682776599774.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 47799567728639 - 2⁸ = 47799567728383 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 (47799567758639) 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, 444320534 + ... + 444428099.

It is an arithmetic number, because the mean of its divisors is an integer number (11950114132764).

Almost surely, 2^{47799567728639} is an apocalyptic number.

47799567728639 is a deficient number, since it is larger than the sum of its proper divisors (888802417).

47799567728639 is an equidigital number, since it uses as much as digits as its factorization.

47799567728639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 888802416.

The product of its digits is 60491370240, while the sum is 89.

The spelling of 47799567728639 in words is "forty-seven trillion, seven hundred ninety-nine billion, five hundred sixty-seven million, seven hundred twenty-eight thousand, six hundred thirty-nine".