47705766540 has 24 divisors (see below), whose sum is σ = 133576146480. Its totient is φ = 12721537728.

The previous prime is 47705766527. The next prime is 47705766587. The reversal of 47705766540 is 4566750774.

It is a happy number.

It is a super-2 number, since 2×47705766540² (a number of 22 digits) contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 397547995 + ... + 397548114.

It is an arithmetic number, because the mean of its divisors is an integer number (5565672770).

Almost surely, 2^47705766540 is an apocalyptic number.

It is an amenable number.

47705766540 is an abundant number, since it is smaller than the sum of its proper divisors (85870379940).

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

47705766540 is a wasteful number, since it uses less digits than its factorization.

47705766540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 795096121 (or 795096119 counting only the distinct ones).

The product of its (nonzero) digits is 4939200, while the sum is 51.

The spelling of 47705766540 in words is "forty-seven billion, seven hundred five million, seven hundred sixty-six thousand, five hundred forty".