47445772772 has 6 divisors (see below), whose sum is σ = 83030102358. Its totient is φ = 23722886384.

The previous prime is 47445772763. The next prime is 47445772873. The reversal of 47445772772 is 27727754474.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 43054590016 + 4391182756 = 207496^2 + 66266^2 .

It is a super-2 number, since 2×47445772772² (a number of 22 digits) contains 22 as substring.

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 as a sum of consecutive naturals, namely, 5930721593 + ... + 5930721600.

It is an arithmetic number, because the mean of its divisors is an integer number (13838350393).

Almost surely, 2^47445772772 is an apocalyptic number.

It is an amenable number.

47445772772 is a deficient number, since it is larger than the sum of its proper divisors (35584329586).

47445772772 is a wasteful number, since it uses less digits than its factorization.

47445772772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11861443197 (or 11861443195 counting only the distinct ones).

The product of its digits is 21512960, while the sum is 56.

The spelling of 47445772772 in words is "forty-seven billion, four hundred forty-five million, seven hundred seventy-two thousand, seven hundred seventy-two".