47143966989 has 16 divisors (see below), whose sum is σ = 71850940928. Its totient is φ = 26934716592.

The previous prime is 47143966963. The next prime is 47143967023. The reversal of 47143966989 is 98966934174.

It is not a de Polignac number, because 47143966989 - 2¹¹ = 47143964941 is a prime.

It is a super-2 number, since 2×47143966989² (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 (47143926989) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 70267 + ... + 315000.

It is an arithmetic number, because the mean of its divisors is an integer number (4490683808).

Almost surely, 2^47143966989 is an apocalyptic number.

It is an amenable number.

47143966989 is a deficient number, since it is larger than the sum of its proper divisors (24706973939).

47143966989 is a wasteful number, since it uses less digits than its factorization.

47143966989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 391104.

The product of its digits is 70543872, while the sum is 66.

The spelling of 47143966989 in words is "forty-seven billion, one hundred forty-three million, nine hundred sixty-six thousand, nine hundred eighty-nine".