75681026738 has 8 divisors (see below), whose sum is σ = 113530725660. Its totient is φ = 37837451520.

The previous prime is 75681026737. The next prime is 75681026761. The reversal of 75681026738 is 83762018657.

It can be written as a sum of positive squares in 2 ways, for example, as 72815244649 + 2865782089 = 269843^2 + 53533^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 75681026738.

It is not an unprimeable number, because it can be changed into a prime (75681026737) 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 3 ways as a sum of consecutive naturals, for example, 1499903 + ... + 1549538.

Almost surely, 2^75681026738 is an apocalyptic number.

75681026738 is a deficient number, since it is larger than the sum of its proper divisors (37849698922).

75681026738 is a wasteful number, since it uses less digits than its factorization.

75681026738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3061852.

The product of its (nonzero) digits is 3386880, while the sum is 53.

The spelling of 75681026738 in words is "seventy-five billion, six hundred eighty-one million, twenty-six thousand, seven hundred thirty-eight".