47685406381 has 8 divisors (see below), whose sum is σ = 48293409920. Its totient is φ = 47077512768.

The previous prime is 47685406357. The next prime is 47685406421. The reversal of 47685406381 is 18360458674.

47685406381 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 a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-47685406381 is a prime.

It is a super-2 number, since 2×47685406381² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47685409381) 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, 1182310 + ... + 1221976.

It is an arithmetic number, because the mean of its divisors is an integer number (6036676240).

Almost surely, 2^47685406381 is an apocalyptic number.

It is an amenable number.

47685406381 is a deficient number, since it is larger than the sum of its proper divisors (608003539).

47685406381 is a wasteful number, since it uses less digits than its factorization.

47685406381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54963.

The product of its (nonzero) digits is 3870720, while the sum is 52.

The spelling of 47685406381 in words is "forty-seven billion, six hundred eighty-five million, four hundred six thousand, three hundred eighty-one".