11978112797 has 8 divisors (see below), whose sum is σ = 13690133376. Its totient is φ = 10266307632.

The previous prime is 11978112767. The next prime is 11978112827. The reversal of 11978112797 is 79721187911.

It is an interprime number because it is at equal distance from previous prime (11978112767) and next prime (11978112827).

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

It is not a de Polignac number, because 11978112797 - 2⁸ = 11978112541 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 (11978112767) 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, 91448 + ... + 179774.

It is an arithmetic number, because the mean of its divisors is an integer number (1711266672).

Almost surely, 2^11978112797 is an apocalyptic number.

It is an amenable number.

11978112797 is a deficient number, since it is larger than the sum of its proper divisors (1712020579).

11978112797 is an equidigital number, since it uses as much as digits as its factorization.

11978112797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107707.

The product of its digits is 444528, while the sum is 53.

The spelling of 11978112797 in words is "eleven billion, nine hundred seventy-eight million, one hundred twelve thousand, seven hundred ninety-seven".