47790187749 has 6 divisors (see below), whose sum is σ = 69030271206. Its totient is φ = 31860125160.

The previous prime is 47790187747. The next prime is 47790187751. The reversal of 47790187749 is 94778109774.

47790187749 is a `hidden beast` number, since 477 + 90 + 1 + 8 + 7 + 74 + 9 = 666.

It is an interprime number because it is at equal distance from previous prime (47790187747) and next prime (47790187751).

It can be written as a sum of positive squares in only one way, i.e., 46902564900 + 887622849 = 216570^2 + 29793^2 .

It is not a de Polignac number, because 47790187749 - 2¹ = 47790187747 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47790187747) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2655010422 + ... + 2655010439.

It is an arithmetic number, because the mean of its divisors is an integer number (11505045201).

Almost surely, 2^47790187749 is an apocalyptic number.

It is an amenable number.

47790187749 is a deficient number, since it is larger than the sum of its proper divisors (21240083457).

47790187749 is a wasteful number, since it uses less digits than its factorization.

47790187749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5310020867 (or 5310020864 counting only the distinct ones).

The product of its (nonzero) digits is 24893568, while the sum is 63.

The spelling of 47790187749 in words is "forty-seven billion, seven hundred ninety million, one hundred eighty-seven thousand, seven hundred forty-nine".