47451093844 has 48 divisors (see below), whose sum is σ = 103704644736. Its totient is φ = 18456192000.

The previous prime is 47451093841. The next prime is 47451093847. The reversal of 47451093844 is 44839015474.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (47451093841) and next prime (47451093847).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47451093841) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 52744 + ... + 312544.

It is an arithmetic number, because the mean of its divisors is an integer number (2160513432).

Almost surely, 2^47451093844 is an apocalyptic number.

47451093844 is a gapful number since it is divisible by the number (44) 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 47451093844, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51852322368).

47451093844 is an abundant number, since it is smaller than the sum of its proper divisors (56253550892).

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

47451093844 is a wasteful number, since it uses less digits than its factorization.

47451093844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260416 (or 260414 counting only the distinct ones).

The product of its (nonzero) digits is 1935360, while the sum is 49.

The spelling of 47451093844 in words is "forty-seven billion, four hundred fifty-one million, ninety-three thousand, eight hundred forty-four".