47715774517 has 4 divisors (see below), whose sum is σ = 47716828236. Its totient is φ = 47714720800.

The previous prime is 47715774487. The next prime is 47715774521. The reversal of 47715774517 is 71547751774.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 19254060081 + 28461714436 = 138759^2 + 168706^2 .

It is a cyclic number.

It is not a de Polignac number, because 47715774517 - 2⁷ = 47715774389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47715774817) 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, 455734 + ... + 550567.

It is an arithmetic number, because the mean of its divisors is an integer number (11929207059).

Almost surely, 2^47715774517 is an apocalyptic number.

It is an amenable number.

47715774517 is a deficient number, since it is larger than the sum of its proper divisors (1053719).

47715774517 is a wasteful number, since it uses less digits than its factorization.

47715774517 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1053718.

The product of its digits is 6722800, while the sum is 55.

The spelling of 47715774517 in words is "forty-seven billion, seven hundred fifteen million, seven hundred seventy-four thousand, five hundred seventeen".