47748315091 has 4 divisors (see below), whose sum is σ = 48912908184. Its totient is φ = 46583722000.

The previous prime is 47748315079. The next prime is 47748315107. The reversal of 47748315091 is 19051384774.

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 47748315091 - 2²³ = 47739926483 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47748315001) 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, 582296485 + ... + 582296566.

It is an arithmetic number, because the mean of its divisors is an integer number (12228227046).

Almost surely, 2^47748315091 is an apocalyptic number.

47748315091 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

47748315091 is a deficient number, since it is larger than the sum of its proper divisors (1164593093).

47748315091 is a wasteful number, since it uses less digits than its factorization.

47748315091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1164593092.

The product of its (nonzero) digits is 846720, while the sum is 49.

The spelling of 47748315091 in words is "forty-seven billion, seven hundred forty-eight million, three hundred fifteen thousand, ninety-one".