47728782774 has 48 divisors (see below), whose sum is σ = 109633380480. Its totient is φ = 14980256640.

The previous prime is 47728782709. The next prime is 47728782791.

47728782774 is a `hidden beast` number, since 477 + 2 + 8 + 78 + 27 + 74 = 666.

47728782774 is nontrivially palindromic in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1135239 + ... + 1176530.

It is an arithmetic number, because the mean of its divisors is an integer number (2284028760).

Almost surely, 2^47728782774 is an apocalyptic number.

47728782774 is an abundant number, since it is smaller than the sum of its proper divisors (61904597706).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

47728782774 is a wasteful number, since it uses less digits than its factorization.

47728782774 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2311845 (or 2311842 counting only the distinct ones).

The product of its digits is 68841472, while the sum is 63.

The spelling of 47728782774 in words is "forty-seven billion, seven hundred twenty-eight million, seven hundred eighty-two thousand, seven hundred seventy-four".