47213506776656 has 80 divisors (see below), whose sum is σ = 100138112500608. Its totient is φ = 21386326425600.

The previous prime is 47213506776617. The next prime is 47213506776671. The reversal of 47213506776656 is 65667760531274.

It is a junction number, because it is equal to n+sod(n) for n = 47213506776592 and 47213506776601.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 222833840 + ... + 223045616.

Almost surely, 2^{47213506776656} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 47213506776656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50069056250304).

47213506776656 is an abundant number, since it is smaller than the sum of its proper divisors (52924605723952).

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

47213506776656 is a wasteful number, since it uses less digits than its factorization.

47213506776656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216180 (or 216174 counting only the distinct ones).

The product of its (nonzero) digits is 266716800, while the sum is 65.

The spelling of 47213506776656 in words is "forty-seven trillion, two hundred thirteen billion, five hundred six million, seven hundred seventy-six thousand, six hundred fifty-six".