47445502891 has 8 divisors (see below), whose sum is σ = 47871337824. Its totient is φ = 47019772800.

The previous prime is 47445502877. The next prime is 47445502901. The reversal of 47445502891 is 19820554474.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-47445502891 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47445500891) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1097610 + ... + 1140016.

It is an arithmetic number, because the mean of its divisors is an integer number (5983917228).

Almost surely, 2^47445502891 is an apocalyptic number.

47445502891 is a deficient number, since it is larger than the sum of its proper divisors (425834933).

47445502891 is a wasteful number, since it uses less digits than its factorization.

47445502891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52421.

The product of its (nonzero) digits is 1612800, while the sum is 49.

The spelling of 47445502891 in words is "forty-seven billion, four hundred forty-five million, five hundred two thousand, eight hundred ninety-one".