47755575540 has 384 divisors, whose sum is σ = 156473856000. Its totient is φ = 12081000960.

The previous prime is 47755575523. The next prime is 47755575559. The reversal of 47755575540 is 4557555774.

47755575540 is a `hidden beast` number, since 47 + 7 + 5 + 5 + 57 + 5 + 540 = 666.

It is a super-3 number, since 3×47755575540³ (a number of 33 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

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 127 ways as a sum of consecutive naturals, for example, 136835286 + ... + 136835634.

It is an arithmetic number, because the mean of its divisors is an integer number (407484000).

Almost surely, 2^47755575540 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 47755575540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78236928000).

47755575540 is an abundant number, since it is smaller than the sum of its proper divisors (108718280460).

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

47755575540 is a wasteful number, since it uses less digits than its factorization.

47755575540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 564 (or 556 counting only the distinct ones).

The product of its (nonzero) digits is 17150000, while the sum is 54.

The spelling of 47755575540 in words is "forty-seven billion, seven hundred fifty-five million, five hundred seventy-five thousand, five hundred forty".