77802738336005 has 16 divisors (see below), whose sum is σ = 94001214748800. Its totient is φ = 61817077022400.

The previous prime is 77802738335981. The next prime is 77802738336019. The reversal of 77802738336005 is 50063383720877.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-77802738336005 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7143335 + ... + 14374724.

It is an arithmetic number, because the mean of its divisors is an integer number (5875075921800).

Almost surely, 2^{77802738336005} is an apocalyptic number.

It is an amenable number.

77802738336005 is a deficient number, since it is larger than the sum of its proper divisors (16198476412795).

77802738336005 is a wasteful number, since it uses less digits than its factorization.

77802738336005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21523004.

The product of its (nonzero) digits is 35562240, while the sum is 59.

The spelling of 77802738336005 in words is "seventy-seven trillion, eight hundred two billion, seven hundred thirty-eight million, three hundred thirty-six thousand, five".