11878553706847 has 4 divisors (see below), whose sum is σ = 11878585127640. Its totient is φ = 11878522286056.

The previous prime is 11878553706829. The next prime is 11878553706863. The reversal of 11878553706847 is 74860735587811.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11878553706847 - 2¹¹ = 11878553704799 is a prime.

It is a super-2 number, since 2×11878553706847² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11878553706827) 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, 15136333 + ... + 15901750.

It is an arithmetic number, because the mean of its divisors is an integer number (2969646281910).

Almost surely, 2^{11878553706847} is an apocalyptic number.

11878553706847 is a deficient number, since it is larger than the sum of its proper divisors (31420793).

11878553706847 is an equidigital number, since it uses as much as digits as its factorization.

11878553706847 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31420792.

The product of its (nonzero) digits is 316108800, while the sum is 70.

The spelling of 11878553706847 in words is "eleven trillion, eight hundred seventy-eight billion, five hundred fifty-three million, seven hundred six thousand, eight hundred forty-seven".