47006711808 has 128 divisors (see below), whose sum is σ = 143258461440. Its totient is φ = 13430292480.

The previous prime is 47006711761. The next prime is 47006711861. The reversal of 47006711808 is 80811760074.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a self number, because there is not a number n which added to its sum of digits gives 47006711808.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 653973 + ... + 722283.

It is an arithmetic number, because the mean of its divisors is an integer number (1119206730).

Almost surely, 2^47006711808 is an apocalyptic number.

47006711808 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 47006711808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71629230720).

47006711808 is an abundant number, since it is smaller than the sum of its proper divisors (96251749632).

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

47006711808 is an frugal number, since it uses more digits than its factorization.

47006711808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68351 (or 68323 counting only the distinct ones).

The product of its (nonzero) digits is 75264, while the sum is 42.

The spelling of 47006711808 in words is "forty-seven billion, six million, seven hundred eleven thousand, eight hundred eight".