47979819583 has 4 divisors (see below), whose sum is σ = 48012842248. Its totient is φ = 47946796920.

The previous prime is 47979819577. The next prime is 47979819647. The reversal of 47979819583 is 38591897974.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-47979819583 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 (47979819883) 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, 16509153 + ... + 16512058.

It is an arithmetic number, because the mean of its divisors is an integer number (12003210562).

Almost surely, 2^47979819583 is an apocalyptic number.

47979819583 is a deficient number, since it is larger than the sum of its proper divisors (33022665).

47979819583 is a wasteful number, since it uses less digits than its factorization.

47979819583 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33022664.

The product of its digits is 137168640, while the sum is 70.

The spelling of 47979819583 in words is "forty-seven billion, nine hundred seventy-nine million, eight hundred nineteen thousand, five hundred eighty-three".