77802478683513 has 8 divisors (see below), whose sum is σ = 106540331170368. Its totient is φ = 50466472659504.

The previous prime is 77802478683511. The next prime is 77802478683577. The reversal of 77802478683513 is 31538687420877.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 77802478683513 - 2¹ = 77802478683511 is a prime.

It is not an unprimeable number, because it can be changed into a prime (77802478683511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 350461615581 + ... + 350461615802.

It is an arithmetic number, because the mean of its divisors is an integer number (13317541396296).

Almost surely, 2^{77802478683513} is an apocalyptic number.

It is an amenable number.

77802478683513 is a deficient number, since it is larger than the sum of its proper divisors (28737852486855).

77802478683513 is a wasteful number, since it uses less digits than its factorization.

77802478683513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 700923231423.

The product of its (nonzero) digits is 379330560, while the sum is 69.

The spelling of 77802478683513 in words is "seventy-seven trillion, eight hundred two billion, four hundred seventy-eight million, six hundred eighty-three thousand, five hundred thirteen".