47745997917 has 8 divisors (see below), whose sum is σ = 63676654080. Its totient is φ = 31823003520.

The previous prime is 47745997907. The next prime is 47745998029. The reversal of 47745997917 is 71979954774.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 47745997917 - 2⁸ = 47745997661 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47745997907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1900884 + ... + 1925837.

It is an arithmetic number, because the mean of its divisors is an integer number (7959581760).

Almost surely, 2^47745997917 is an apocalyptic number.

It is an amenable number.

47745997917 is a deficient number, since it is larger than the sum of its proper divisors (15930656163).

47745997917 is a wasteful number, since it uses less digits than its factorization.

47745997917 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3830883.

The product of its digits is 140026320, while the sum is 69.

The spelling of 47745997917 in words is "forty-seven billion, seven hundred forty-five million, nine hundred ninety-seven thousand, nine hundred seventeen".