47047971789 has 48 divisors (see below), whose sum is σ = 84503258112. Its totient is φ = 24560630784.

The previous prime is 47047971781. The next prime is 47047971791. The reversal of 47047971789 is 98717974074.

47047971789 is a `hidden beast` number, since 4 + 70 + 479 + 7 + 17 + 89 = 666.

It is not a de Polignac number, because 47047971789 - 2³ = 47047971781 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47047971781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 216669 + ... + 375554.

It is an arithmetic number, because the mean of its divisors is an integer number (1760484544).

Almost surely, 2^47047971789 is an apocalyptic number.

It is an amenable number.

47047971789 is a deficient number, since it is larger than the sum of its proper divisors (37455286323).

47047971789 is a wasteful number, since it uses less digits than its factorization.

47047971789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 592346 (or 592343 counting only the distinct ones).

The product of its (nonzero) digits is 24893568, while the sum is 63.

The spelling of 47047971789 in words is "forty-seven billion, forty-seven million, nine hundred seventy-one thousand, seven hundred eighty-nine".