11818729072901 has 4 divisors (see below), whose sum is σ = 11868179822400. Its totient is φ = 11769278323404.

The previous prime is 11818729072889. The next prime is 11818729072991. The reversal of 11818729072901 is 10927092781811.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11818729072901 - 2⁶ = 11818729072837 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 (11818729072991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24725374391 + ... + 24725374868.

It is an arithmetic number, because the mean of its divisors is an integer number (2967044955600).

Almost surely, 2^{11818729072901} is an apocalyptic number.

It is an amenable number.

11818729072901 is a deficient number, since it is larger than the sum of its proper divisors (49450749499).

11818729072901 is an equidigital number, since it uses as much as digits as its factorization.

11818729072901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49450749498.

The product of its (nonzero) digits is 1016064, while the sum is 56.

The spelling of 11818729072901 in words is "eleven trillion, eight hundred eighteen billion, seven hundred twenty-nine million, seventy-two thousand, nine hundred one".