11901618079 has 4 divisors (see below), whose sum is σ = 12817127176. Its totient is φ = 10986108984.

The previous prime is 11901618049. The next prime is 11901618109. The reversal of 11901618079 is 97081610911.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 97081610911 = 19 ⋅5109558469.

It is an interprime number because it is at equal distance from previous prime (11901618049) and next prime (11901618109).

It is a cyclic number.

It is not a de Polignac number, because 11901618079 - 2¹³ = 11901609887 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 (11901618049) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 457754529 + ... + 457754554.

It is an arithmetic number, because the mean of its divisors is an integer number (3204281794).

Almost surely, 2^11901618079 is an apocalyptic number.

11901618079 is a deficient number, since it is larger than the sum of its proper divisors (915509097).

11901618079 is an equidigital number, since it uses as much as digits as its factorization.

11901618079 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 915509096.

The product of its (nonzero) digits is 27216, while the sum is 43.

The spelling of 11901618079 in words is "eleven billion, nine hundred one million, six hundred eighteen thousand, seventy-nine".