47782135657 has 8 divisors (see below), whose sum is σ = 49869809280. Its totient is φ = 45695311200.

The previous prime is 47782135591. The next prime is 47782135697. The reversal of 47782135657 is 75653128774.

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-47782135657 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 47782135598 and 47782135607.

It is not an unprimeable number, because it can be changed into a prime (47782135697) 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, 95932 + ... + 323677.

It is an arithmetic number, because the mean of its divisors is an integer number (6233726160).

Almost surely, 2^47782135657 is an apocalyptic number.

It is an amenable number.

47782135657 is a deficient number, since it is larger than the sum of its proper divisors (2087673623).

47782135657 is a wasteful number, since it uses less digits than its factorization.

47782135657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 424583.

The product of its digits is 9878400, while the sum is 55.

The spelling of 47782135657 in words is "forty-seven billion, seven hundred eighty-two million, one hundred thirty-five thousand, six hundred fifty-seven".