231738706507 has 16 divisors (see below), whose sum is σ = 288950400000. Its totient is φ = 180557231040.

The previous prime is 231738706501. The next prime is 231738706553. The reversal of 231738706507 is 705607837132.

231738706507 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 231738706507 - 2¹¹ = 231738704459 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231738706501) 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 15 ways as a sum of consecutive naturals, for example, 634119 + ... + 930367.

It is an arithmetic number, because the mean of its divisors is an integer number (18059400000).

Almost surely, 2^231738706507 is an apocalyptic number.

231738706507 is a deficient number, since it is larger than the sum of its proper divisors (57211693493).

231738706507 is a wasteful number, since it uses less digits than its factorization.

231738706507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306426.

The product of its (nonzero) digits is 1481760, while the sum is 49.

The spelling of 231738706507 in words is "two hundred thirty-one billion, seven hundred thirty-eight million, seven hundred six thousand, five hundred seven".