47439731907 has 12 divisors (see below), whose sum is σ = 68530381920. Its totient is φ = 31623568848.

The previous prime is 47439731869. The next prime is 47439731909. The reversal of 47439731907 is 70913793474.

It is not a de Polignac number, because 47439731907 - 2¹⁶ = 47439666371 is a prime.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (47439731909) 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 11 ways as a sum of consecutive naturals, for example, 137932 + ... + 337497.

It is an arithmetic number, because the mean of its divisors is an integer number (5710865160).

Almost surely, 2^47439731907 is an apocalyptic number.

47439731907 is a deficient number, since it is larger than the sum of its proper divisors (21090650013).

47439731907 is a wasteful number, since it uses less digits than its factorization.

47439731907 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 486522 (or 486519 counting only the distinct ones).

The product of its (nonzero) digits is 4000752, while the sum is 54.

The spelling of 47439731907 in words is "forty-seven billion, four hundred thirty-nine million, seven hundred thirty-one thousand, nine hundred seven".