47815646342189 has 4 divisors (see below), whose sum is σ = 52162523282400. Its totient is φ = 43468769401980.

The previous prime is 47815646342143. The next prime is 47815646342237. The reversal of 47815646342189 is 98124364651874.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-47815646342189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47815646342119) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2173438470089 + ... + 2173438470110.

It is an arithmetic number, because the mean of its divisors is an integer number (13040630820600).

Almost surely, 2^{47815646342189} is an apocalyptic number.

It is an amenable number.

47815646342189 is a deficient number, since it is larger than the sum of its proper divisors (4346876940211).

47815646342189 is a wasteful number, since it uses less digits than its factorization.

47815646342189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4346876940210.

The product of its digits is 278691840, while the sum is 68.

The spelling of 47815646342189 in words is "forty-seven trillion, eight hundred fifteen billion, six hundred forty-six million, three hundred forty-two thousand, one hundred eighty-nine".