47451221144 has 32 divisors (see below), whose sum is σ = 90617496240. Its totient is φ = 23289638400.

The previous prime is 47451221141. The next prime is 47451221161. The reversal of 47451221144 is 44112215474.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47451221141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69317 + ... + 315764.

Almost surely, 2^47451221144 is an apocalyptic number.

It is an amenable number.

47451221144 is a deficient number, since it is larger than the sum of its proper divisors (43166275096).

47451221144 is a wasteful number, since it uses less digits than its factorization.

47451221144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 385371 (or 385367 counting only the distinct ones).

The product of its digits is 35840, while the sum is 35.

The spelling of 47451221144 in words is "forty-seven billion, four hundred fifty-one million, two hundred twenty-one thousand, one hundred forty-four".