47638001923 has 4 divisors (see below), whose sum is σ = 48651576480. Its totient is φ = 46624427368.

The previous prime is 47638001891. The next prime is 47638001933. The reversal of 47638001923 is 32910083674.

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

It is a cyclic number.

It is not a de Polignac number, because 47638001923 - 2⁵ = 47638001891 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 47638001923.

It is not an unprimeable number, because it can be changed into a prime (47638001933) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 506787208 + ... + 506787301.

It is an arithmetic number, because the mean of its divisors is an integer number (12162894120).

Almost surely, 2^47638001923 is an apocalyptic number.

47638001923 is a deficient number, since it is larger than the sum of its proper divisors (1013574557).

47638001923 is a wasteful number, since it uses less digits than its factorization.

47638001923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1013574556.

The product of its (nonzero) digits is 217728, while the sum is 43.

The spelling of 47638001923 in words is "forty-seven billion, six hundred thirty-eight million, one thousand, nine hundred twenty-three".