10778381439173 has 4 divisors (see below), whose sum is σ = 10781877511488. Its totient is φ = 10774885366860.

The previous prime is 10778381439157. The next prime is 10778381439191. The reversal of 10778381439173 is 37193418387701.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 10778381439173 - 2⁴ = 10778381439157 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 (10778381439113) 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, 1748031533 + ... + 1748037698.

It is an arithmetic number, because the mean of its divisors is an integer number (2695469377872).

Almost surely, 2^{10778381439173} is an apocalyptic number.

It is an amenable number.

10778381439173 is a deficient number, since it is larger than the sum of its proper divisors (3496072315).

10778381439173 is an equidigital number, since it uses as much as digits as its factorization.

10778381439173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3496072314.

The product of its (nonzero) digits is 21337344, while the sum is 62.

The spelling of 10778381439173 in words is "ten trillion, seven hundred seventy-eight billion, three hundred eighty-one million, four hundred thirty-nine thousand, one hundred seventy-three".