47994479922 has 16 divisors (see below), whose sum is σ = 98583256512. Its totient is φ = 15565777200.

The previous prime is 47994479857. The next prime is 47994479969. The reversal of 47994479922 is 22997449974.

It is a happy number.

It is a super-2 number, since 2×47994479922² (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 (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 108095454 + ... + 108095897.

It is an arithmetic number, because the mean of its divisors is an integer number (6161453532).

Almost surely, 2^47994479922 is an apocalyptic number.

47994479922 is an abundant number, since it is smaller than the sum of its proper divisors (50588776590).

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

47994479922 is a wasteful number, since it uses less digits than its factorization.

47994479922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216191393.

The product of its digits is 82301184, while the sum is 66.

The spelling of 47994479922 in words is "forty-seven billion, nine hundred ninety-four million, four hundred seventy-nine thousand, nine hundred twenty-two".