47685917481 has 8 divisors (see below), whose sum is σ = 63587598144. Its totient is φ = 31787424240.

The previous prime is 47685917459. The next prime is 47685917491. The reversal of 47685917481 is 18471958674.

47685917481 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 47685917481 - 2²⁹ = 47149046569 is a prime.

It is a super-2 number, since 2×47685917481² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (47685917401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 761725 + ... + 821946.

It is an arithmetic number, because the mean of its divisors is an integer number (7948449768).

Almost surely, 2^47685917481 is an apocalyptic number.

It is an amenable number.

47685917481 is a deficient number, since it is larger than the sum of its proper divisors (15901680663).

47685917481 is a wasteful number, since it uses less digits than its factorization.

47685917481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1593711.

The product of its digits is 13547520, while the sum is 60.

The spelling of 47685917481 in words is "forty-seven billion, six hundred eighty-five million, nine hundred seventeen thousand, four hundred eighty-one".