47157782771 has 8 divisors (see below), whose sum is σ = 51627935088. Its totient is φ = 42718144000.

The previous prime is 47157782767. The next prime is 47157782797. The reversal of 47157782771 is 17728775174.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 47157782771 - 2² = 47157782767 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47157782071) 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, 7625150 + ... + 7631331.

It is an arithmetic number, because the mean of its divisors is an integer number (6453491886).

Almost surely, 2^47157782771 is an apocalyptic number.

47157782771 is a deficient number, since it is larger than the sum of its proper divisors (4470152317).

47157782771 is a wasteful number, since it uses less digits than its factorization.

47157782771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15256773.

The product of its digits is 5378240, while the sum is 56.

It can be divided in two parts, 47157 and 782771, that added together give a palindrome (829928).

The spelling of 47157782771 in words is "forty-seven billion, one hundred fifty-seven million, seven hundred eighty-two thousand, seven hundred seventy-one".