47144531901 has 4 divisors (see below), whose sum is σ = 62859375872. Its totient is φ = 31429687932.

The previous prime is 47144531899. The next prime is 47144531923. The reversal of 47144531901 is 10913544174.

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.

It is not a de Polignac number, because 47144531901 - 2¹ = 47144531899 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 47144531901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47144531501) 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, 7857421981 + ... + 7857421986.

It is an arithmetic number, because the mean of its divisors is an integer number (15714843968).

Almost surely, 2^47144531901 is an apocalyptic number.

It is an amenable number.

47144531901 is a deficient number, since it is larger than the sum of its proper divisors (15714843971).

47144531901 is a wasteful number, since it uses less digits than its factorization.

47144531901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15714843970.

The product of its (nonzero) digits is 60480, while the sum is 39.

The spelling of 47144531901 in words is "forty-seven billion, one hundred forty-four million, five hundred thirty-one thousand, nine hundred one".