7168494640738 has 4 divisors (see below), whose sum is σ = 10752741961110. Its totient is φ = 3584247320368.

The previous prime is 7168494640733. The next prime is 7168494640753. The reversal of 7168494640738 is 8370464948617.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 6530360478849 + 638134161889 = 2555457^2 + 798833^2 .

It is not an unprimeable number, because it can be changed into a prime (7168494640733) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1792123660183 + ... + 1792123660186.

Almost surely, 2^{7168494640738} is an apocalyptic number.

7168494640738 is a deficient number, since it is larger than the sum of its proper divisors (3584247320372).

7168494640738 is a wasteful number, since it uses less digits than its factorization.

7168494640738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3584247320371.

The product of its (nonzero) digits is 195084288, while the sum is 67.

The spelling of 7168494640738 in words is "seven trillion, one hundred sixty-eight billion, four hundred ninety-four million, six hundred forty thousand, seven hundred thirty-eight".