11737998791999 has 8 divisors (see below), whose sum is σ = 12018180725760. Its totient is φ = 11458144368216.

The previous prime is 11737998791977. The next prime is 11737998792011. The reversal of 11737998791999 is 99919789973711.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11737998791999 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11737998791929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81804959 + ... + 81948320.

It is an arithmetic number, because the mean of its divisors is an integer number (1502272590720).

Almost surely, 2^{11737998791999} is an apocalyptic number.

11737998791999 is a deficient number, since it is larger than the sum of its proper divisors (280181933761).

11737998791999 is a wasteful number, since it uses less digits than its factorization.

11737998791999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163754989.

The product of its digits is 4374822312, while the sum is 89.

The spelling of 11737998791999 in words is "eleven trillion, seven hundred thirty-seven billion, nine hundred ninety-eight million, seven hundred ninety-one thousand, nine hundred ninety-nine".