8778434036327 has 4 divisors (see below), whose sum is σ = 8799897200640. Its totient is φ = 8756970872016.

The previous prime is 8778434036287. The next prime is 8778434036329. The reversal of 8778434036327 is 7236304348778.

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 8778434036327 - 2⁶ = 8778434036263 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 8778434036327.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8778434036329) 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, 10731581543 + ... + 10731582360.

It is an arithmetic number, because the mean of its divisors is an integer number (2199974300160).

Almost surely, 2^{8778434036327} is an apocalyptic number.

8778434036327 is a deficient number, since it is larger than the sum of its proper divisors (21463164313).

8778434036327 is a wasteful number, since it uses less digits than its factorization.

8778434036327 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21463164312.

The product of its (nonzero) digits is 113799168, while the sum is 62.

The spelling of 8778434036327 in words is "eight trillion, seven hundred seventy-eight billion, four hundred thirty-four million, thirty-six thousand, three hundred twenty-seven".