47919981000 has 64 divisors (see below), whose sum is σ = 149510350080. Its totient is φ = 12778660800.

The previous prime is 47919980963. The next prime is 47919981007. The reversal of 47919981000 is 18991974.

It is a super-2 number, since 2×47919981000² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (47919981007) 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 15 ways as a sum of consecutive naturals, for example, 7983664 + ... + 7989663.

It is an arithmetic number, because the mean of its divisors is an integer number (2336099220).

Almost surely, 2^47919981000 is an apocalyptic number.

47919981000 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

47919981000 is an abundant number, since it is smaller than the sum of its proper divisors (101590369080).

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

47919981000 is a wasteful number, since it uses less digits than its factorization.

47919981000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15973351 (or 15973337 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 48.

The spelling of 47919981000 in words is "forty-seven billion, nine hundred nineteen million, nine hundred eighty-one thousand".