47071238940 has 192 divisors, whose sum is σ = 159921216000. Its totient is φ = 11399477760.

The previous prime is 47071238927. The next prime is 47071238969. The reversal of 47071238940 is 4983217074.

47071238940 is a `hidden beast` number, since 470 + 71 + 23 + 8 + 94 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6702751 + ... + 6709769.

It is an arithmetic number, because the mean of its divisors is an integer number (832923000).

Almost surely, 2^47071238940 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 47071238940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79960608000).

47071238940 is an abundant number, since it is smaller than the sum of its proper divisors (112849977060).

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

47071238940 is a wasteful number, since it uses less digits than its factorization.

47071238940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8177 (or 8169 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 45.

The spelling of 47071238940 in words is "forty-seven billion, seventy-one million, two hundred thirty-eight thousand, nine hundred forty".