47755921823 has 4 divisors (see below), whose sum is σ = 47820544920. Its totient is φ = 47691298728.

The previous prime is 47755921723. The next prime is 47755921861. The reversal of 47755921823 is 32812955774.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32812955774 = 2 ⋅16406477887.

It is a cyclic number.

It is not a de Polignac number, because 47755921823 - 2³² = 43460954527 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 (47755921723) 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, 32310440 + ... + 32311917.

It is an arithmetic number, because the mean of its divisors is an integer number (11955136230).

Almost surely, 2^47755921823 is an apocalyptic number.

47755921823 is a deficient number, since it is larger than the sum of its proper divisors (64623097).

47755921823 is an equidigital number, since it uses as much as digits as its factorization.

47755921823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64623096.

The product of its digits is 4233600, while the sum is 53.

The spelling of 47755921823 in words is "forty-seven billion, seven hundred fifty-five million, nine hundred twenty-one thousand, eight hundred twenty-three".