47044894659840 has 2880 divisors, whose sum is σ = 222201263370240. Its totient is φ = 9207341383680.

The previous prime is 47044894659817. The next prime is 47044894659857. The reversal of 47044894659840 is 4895649844074.

47044894659840 is a `hidden beast` number, since 4 + 7 + 0 + 4 + 4 + 89 + 465 + 9 + 84 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (2880).

It is a super-2 number, since 2×47044894659840² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 319 ways as a sum of consecutive naturals, for example, 29274980317 + ... + 29274981923.

It is an arithmetic number, because the mean of its divisors is an integer number (77153216448).

Almost surely, 2^{47044894659840} is an apocalyptic number.

47044894659840 is a gapful number since it is divisible by the number (40) 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 47044894659840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (111100631685120).

47044894659840 is an abundant number, since it is smaller than the sum of its proper divisors (175156368710400).

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

47044894659840 is a wasteful number, since it uses less digits than its factorization.

47044894659840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1870 (or 1847 counting only the distinct ones).

The product of its (nonzero) digits is 1114767360, while the sum is 72.

The spelling of 47044894659840 in words is "forty-seven trillion, forty-four billion, eight hundred ninety-four million, six hundred fifty-nine thousand, eight hundred forty".