47565279540 has 192 divisors, whose sum is σ = 157012369920. Its totient is φ = 11913062400.

The previous prime is 47565279533. The next prime is 47565279551. The reversal of 47565279540 is 4597256574.

It is a happy number.

47565279540 is a `hidden beast` number, since 4 + 7 + 565 + 2 + 79 + 5 + 4 + 0 = 666.

It is a super-2 number, since 2×47565279540² (a number of 22 digits) contains 22 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 polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4612390 + ... + 4622690.

It is an arithmetic number, because the mean of its divisors is an integer number (817772760).

Almost surely, 2^47565279540 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 47565279540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78506184960).

47565279540 is an abundant number, since it is smaller than the sum of its proper divisors (109447090380).

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

47565279540 is a wasteful number, since it uses less digits than its factorization.

47565279540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10839 (or 10831 counting only the distinct ones).

The product of its (nonzero) digits is 10584000, while the sum is 54.

The spelling of 47565279540 in words is "forty-seven billion, five hundred sixty-five million, two hundred seventy-nine thousand, five hundred forty".