47980457844 has 24 divisors (see below), whose sum is σ = 122132074848. Its totient is φ = 14539532640.

The previous prime is 47980457839. The next prime is 47980457867. The reversal of 47980457844 is 44875408974.

It is a super-2 number, since 2×47980457844² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 181744027 + ... + 181744290.

It is an arithmetic number, because the mean of its divisors is an integer number (5088836452).

Almost surely, 2^47980457844 is an apocalyptic number.

47980457844 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

47980457844 is an abundant number, since it is smaller than the sum of its proper divisors (74151617004).

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

47980457844 is a wasteful number, since it uses less digits than its factorization.

47980457844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 363488335 (or 363488333 counting only the distinct ones).

The product of its (nonzero) digits is 36126720, while the sum is 60.

The spelling of 47980457844 in words is "forty-seven billion, nine hundred eighty million, four hundred fifty-seven thousand, eight hundred forty-four".