731690137738 has 16 divisors (see below), whose sum is σ = 1256944596480. Its totient is φ = 312926826096.

The previous prime is 731690137721. The next prime is 731690137811. The reversal of 731690137738 is 837731096137.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 54548181 + ... + 54561592.

It is an arithmetic number, because the mean of its divisors is an integer number (78559037280).

Almost surely, 2^731690137738 is an apocalyptic number.

731690137738 is a deficient number, since it is larger than the sum of its proper divisors (525254458742).

731690137738 is a wasteful number, since it uses less digits than its factorization.

731690137738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109110261.

The product of its (nonzero) digits is 4000752, while the sum is 55.

The spelling of 731690137738 in words is "seven hundred thirty-one billion, six hundred ninety million, one hundred thirty-seven thousand, seven hundred thirty-eight".