47446535391 has 16 divisors (see below), whose sum is σ = 64766092800. Its totient is φ = 30882293568.

The previous prime is 47446535243. The next prime is 47446535393. The reversal of 47446535391 is 19353564474.

It is not a de Polignac number, because 47446535391 - 2¹³ = 47446527199 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47446535393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 353701 + ... + 469038.

It is an arithmetic number, because the mean of its divisors is an integer number (4047880800).

Almost surely, 2^47446535391 is an apocalyptic number.

47446535391 is a deficient number, since it is larger than the sum of its proper divisors (17319557409).

47446535391 is a wasteful number, since it uses less digits than its factorization.

47446535391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 823198.

The product of its digits is 5443200, while the sum is 51.

The spelling of 47446535391 in words is "forty-seven billion, four hundred forty-six million, five hundred thirty-five thousand, three hundred ninety-one".