47736777220 has 36 divisors (see below), whose sum is σ = 110189112012. Its totient is φ = 17358827200.

The previous prime is 47736777203. The next prime is 47736777227. The reversal of 47736777220 is 2277763774.

It can be written as a sum of positive squares in 2 ways, for example, as 26275113216 + 21461664004 = 162096^2 + 146498^2 .

It is not an unprimeable number, because it can be changed into a prime (47736777227) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9860551 + ... + 9865390.

It is an arithmetic number, because the mean of its divisors is an integer number (3060808667).

Almost surely, 2^47736777220 is an apocalyptic number.

It is an amenable number.

47736777220 is an abundant number, since it is smaller than the sum of its proper divisors (62452334792).

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

47736777220 is a wasteful number, since it uses less digits than its factorization.

47736777220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19725972 (or 19725959 counting only the distinct ones).

The product of its (nonzero) digits is 4840416, while the sum is 52.

The spelling of 47736777220 in words is "forty-seven billion, seven hundred thirty-six million, seven hundred seventy-seven thousand, two hundred twenty".