47820351689 has 8 divisors (see below), whose sum is σ = 52629318432. Its totient is φ = 43088328640.

The previous prime is 47820351617. The next prime is 47820351757. The reversal of 47820351689 is 98615302874.

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-47820351689 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 47820351689.

It is not an unprimeable number, because it can be changed into a prime (47820351289) 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, 19234619 + ... + 19237104.

It is an arithmetic number, because the mean of its divisors is an integer number (6578664804).

It is a 1-persistent number, because it is pandigital, but 2⋅47820351689 = 95640703378 is not.

Almost surely, 2^47820351689 is an apocalyptic number.

It is an amenable number.

47820351689 is a deficient number, since it is larger than the sum of its proper divisors (4808966743).

47820351689 is a wasteful number, since it uses less digits than its factorization.

47820351689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38471847.

The product of its (nonzero) digits is 2903040, while the sum is 53.

The spelling of 47820351689 in words is "forty-seven billion, eight hundred twenty million, three hundred fifty-one thousand, six hundred eighty-nine".