47922938993 has 4 divisors (see below), whose sum is σ = 50445198960. Its totient is φ = 45400679028.

The previous prime is 47922938939. The next prime is 47922939017. The reversal of 47922938993 is 39983922974.

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, and also an emirpimes, since its reverse is a distinct semiprime: 39983922974 = 2 ⋅19991961487.

It is a cyclic number.

It is not a de Polignac number, because 47922938993 - 2¹⁰ = 47922937969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47922238993) 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, 1261129955 + ... + 1261129992.

It is an arithmetic number, because the mean of its divisors is an integer number (12611299740).

Almost surely, 2^47922938993 is an apocalyptic number.

It is an amenable number.

47922938993 is a deficient number, since it is larger than the sum of its proper divisors (2522259967).

47922938993 is a wasteful number, since it uses less digits than its factorization.

47922938993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2522259966.

The product of its digits is 52907904, while the sum is 65.

The spelling of 47922938993 in words is "forty-seven billion, nine hundred twenty-two million, nine hundred thirty-eight thousand, nine hundred ninety-three".