11751749321698 has 4 divisors (see below), whose sum is σ = 17627623982550. Its totient is φ = 5875874660848.

The previous prime is 11751749321621. The next prime is 11751749321701. The reversal of 11751749321698 is 89612394715711.

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., 10747991798569 + 1003757523129 = 3278413^2 + 1001877^2 .

It is a super-2 number, since 2×11751749321698² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2937937330423 + ... + 2937937330426.

Almost surely, 2^{11751749321698} is an apocalyptic number.

11751749321698 is a deficient number, since it is larger than the sum of its proper divisors (5875874660852).

11751749321698 is an equidigital number, since it uses as much as digits as its factorization.

11751749321698 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5875874660851.

The product of its digits is 22861440, while the sum is 64.

The spelling of 11751749321698 in words is "eleven trillion, seven hundred fifty-one billion, seven hundred forty-nine million, three hundred twenty-one thousand, six hundred ninety-eight".