10855179785387 has 4 divisors (see below), whose sum is σ = 12405919754736. Its totient is φ = 9304439816040.

The previous prime is 10855179785371. The next prime is 10855179785393. The reversal of 10855179785387 is 78358797155801.

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 10855179785387 - 2⁴ = 10855179785371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10855179785327) 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, 775369984664 + ... + 775369984677.

It is an arithmetic number, because the mean of its divisors is an integer number (3101479938684).

Almost surely, 2^{10855179785387} is an apocalyptic number.

10855179785387 is a deficient number, since it is larger than the sum of its proper divisors (1550739969349).

10855179785387 is an equidigital number, since it uses as much as digits as its factorization.

10855179785387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1550739969348.

The product of its (nonzero) digits is 592704000, while the sum is 74.

The spelling of 10855179785387 in words is "ten trillion, eight hundred fifty-five billion, one hundred seventy-nine million, seven hundred eighty-five thousand, three hundred eighty-seven".