78536047168711 has 4 divisors (see below), whose sum is σ = 85675687820424. Its totient is φ = 71396406517000.

The previous prime is 78536047168703. The next prime is 78536047168751. The reversal of 78536047168711 is 11786174063587.

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 78536047168711 - 2³ = 78536047168703 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 (78536047168751) 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, 3569820325840 + ... + 3569820325861.

It is an arithmetic number, because the mean of its divisors is an integer number (21418921955106).

Almost surely, 2^{78536047168711} is an apocalyptic number.

78536047168711 is a deficient number, since it is larger than the sum of its proper divisors (7139640651713).

78536047168711 is a wasteful number, since it uses less digits than its factorization.

78536047168711 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7139640651712.

The product of its (nonzero) digits is 47416320, while the sum is 64.

The spelling of 78536047168711 in words is "seventy-eight trillion, five hundred thirty-six billion, forty-seven million, one hundred sixty-eight thousand, seven hundred eleven".