78502047027811 has 16 divisors (see below), whose sum is σ = 86090037884928. Its totient is φ = 70989323024800.

The previous prime is 78502047027779. The next prime is 78502047027881. The reversal of 78502047027811 is 11872074020587.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 78502047027811 - 2⁵ = 78502047027779 is a prime.

It is not an unprimeable number, because it can be changed into a prime (78502047027881) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59526705 + ... + 60831181.

It is an arithmetic number, because the mean of its divisors is an integer number (5380627367808).

Almost surely, 2^{78502047027811} is an apocalyptic number.

78502047027811 is a deficient number, since it is larger than the sum of its proper divisors (7587990857117).

78502047027811 is a wasteful number, since it uses less digits than its factorization.

78502047027811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1333322.

The product of its (nonzero) digits is 1756160, while the sum is 52.

The spelling of 78502047027811 in words is "seventy-eight trillion, five hundred two billion, forty-seven million, twenty-seven thousand, eight hundred eleven".