47191391455488 has 288 divisors, whose sum is σ = 152232155663616. Its totient is φ = 12669405364224.

The previous prime is 47191391455447. The next prime is 47191391455489. The reversal of 47191391455488 is 88455419319174.

It is a Smith number, since the sum of its digits (69) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (47191391455489) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 55602120 + ... + 56444472.

It is an arithmetic number, because the mean of its divisors is an integer number (528583873832).

Almost surely, 2^{47191391455488} is an apocalyptic number.

47191391455488 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 47191391455488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76116077831808).

47191391455488 is an abundant number, since it is smaller than the sum of its proper divisors (105040764208128).

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

47191391455488 is a wasteful number, since it uses less digits than its factorization.

47191391455488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 843009 (or 842995 counting only the distinct ones).

The product of its digits is 174182400, while the sum is 69.

The spelling of 47191391455488 in words is "forty-seven trillion, one hundred ninety-one billion, three hundred ninety-one million, four hundred fifty-five thousand, four hundred eighty-eight".