47985981583 has 4 divisors (see below), whose sum is σ = 50808686400. Its totient is φ = 45163276768.

The previous prime is 47985981523. The next prime is 47985981599. The reversal of 47985981583 is 38518958974.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 38518958974 = 2 ⋅19259479487.

It is a cyclic number.

It is not a de Polignac number, because 47985981583 - 2¹³ = 47985973391 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 (47985981523) 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, 1411352383 + ... + 1411352416.

It is an arithmetic number, because the mean of its divisors is an integer number (12702171600).

Almost surely, 2^47985981583 is an apocalyptic number.

47985981583 is a deficient number, since it is larger than the sum of its proper divisors (2822704817).

47985981583 is a wasteful number, since it uses less digits than its factorization.

47985981583 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2822704816.

The product of its digits is 87091200, while the sum is 67.

The spelling of 47985981583 in words is "forty-seven billion, nine hundred eighty-five million, nine hundred eighty-one thousand, five hundred eighty-three".