47865558728 has 32 divisors (see below), whose sum is σ = 96681950400. Its totient is φ = 22084861248.

The previous prime is 47865558707. The next prime is 47865558743. The reversal of 47865558728 is 82785556874.

It is a super-2 number, since 2×47865558728² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 268325 + ... + 409547.

It is an arithmetic number, because the mean of its divisors is an integer number (3021310950).

Almost surely, 2^47865558728 is an apocalyptic number.

It is an amenable number.

47865558728 is an abundant number, since it is smaller than the sum of its proper divisors (48816391672).

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

47865558728 is a wasteful number, since it uses less digits than its factorization.

47865558728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144501 (or 144497 counting only the distinct ones).

The product of its digits is 150528000, while the sum is 65.

The spelling of 47865558728 in words is "forty-seven billion, eight hundred sixty-five million, five hundred fifty-eight thousand, seven hundred twenty-eight".