11971748893 has 8 divisors (see below), whose sum is σ = 13571213600. Its totient is φ = 10469221488.

The previous prime is 11971748863. The next prime is 11971748923. The reversal of 11971748893 is 39884717911.

It is an interprime number because it is at equal distance from previous prime (11971748863) and next prime (11971748923).

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

It is a cyclic number.

It is not a de Polignac number, because 11971748893 - 2⁵ = 11971748861 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11971748863) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24234063 + ... + 24234556.

It is an arithmetic number, because the mean of its divisors is an integer number (1696401700).

Almost surely, 2^11971748893 is an apocalyptic number.

11971748893 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

11971748893 is a deficient number, since it is larger than the sum of its proper divisors (1599464707).

11971748893 is a wasteful number, since it uses less digits than its factorization.

11971748893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48468651.

The product of its digits is 3048192, while the sum is 58.

The spelling of 11971748893 in words is "eleven billion, nine hundred seventy-one million, seven hundred forty-eight thousand, eight hundred ninety-three".