47993144309 has 16 divisors (see below), whose sum is σ = 53820941184. Its totient is φ = 42426316800.

The previous prime is 47993144239. The next prime is 47993144317. The reversal of 47993144309 is 90344139974.

It is a cyclic number.

It is not a de Polignac number, because 47993144309 - 2⁸ = 47993144053 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 (47993144359) 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, 363884 + ... + 477909.

It is an arithmetic number, because the mean of its divisors is an integer number (3363808824).

Almost surely, 2^47993144309 is an apocalyptic number.

It is an amenable number.

47993144309 is a deficient number, since it is larger than the sum of its proper divisors (5827796875).

47993144309 is a wasteful number, since it uses less digits than its factorization.

47993144309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 841948.

The product of its (nonzero) digits is 2939328, while the sum is 53.

The spelling of 47993144309 in words is "forty-seven billion, nine hundred ninety-three million, one hundred forty-four thousand, three hundred nine".