48891989071 has 4 divisors (see below), whose sum is σ = 48895669944. Its totient is φ = 48888308200.

The previous prime is 48891989059. The next prime is 48891989087. The reversal of 48891989071 is 17098919884.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-48891989071 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 48891988994 and 48891989012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (48891989021) 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, 1820440 + ... + 1847101.

It is an arithmetic number, because the mean of its divisors is an integer number (12223917486).

Almost surely, 2^48891989071 is an apocalyptic number.

48891989071 is a deficient number, since it is larger than the sum of its proper divisors (3680873).

48891989071 is a wasteful number, since it uses less digits than its factorization.

48891989071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3680872.

The product of its (nonzero) digits is 10450944, while the sum is 64.

The spelling of 48891989071 in words is "forty-eight billion, eight hundred ninety-one million, nine hundred eighty-nine thousand, seventy-one".