47409075540 has 144 divisors (see below), whose sum is σ = 145118990016. Its totient is φ = 12527424000.

The previous prime is 47409075509. The next prime is 47409075547. The reversal of 47409075540 is 4557090474.

47409075540 is a `hidden beast` number, since 4 + 7 + 4 + 0 + 90 + 7 + 554 + 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 not an unprimeable number, because it can be changed into a prime (47409075547) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 24781624 + ... + 24783536.

It is an arithmetic number, because the mean of its divisors is an integer number (1007770764).

Almost surely, 2^47409075540 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 47409075540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72559495008).

47409075540 is an abundant number, since it is smaller than the sum of its proper divisors (97709914476).

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

47409075540 is a wasteful number, since it uses less digits than its factorization.

47409075540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3110 (or 3105 counting only the distinct ones).

The product of its (nonzero) digits is 705600, while the sum is 45.

The spelling of 47409075540 in words is "forty-seven billion, four hundred nine million, seventy-five thousand, five hundred forty".