78802882277 has 4 divisors (see below), whose sum is σ = 90060436896. Its totient is φ = 67545327660.

The previous prime is 78802882163. The next prime is 78802882283. The reversal of 78802882277 is 77228820887.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 78802882277 - 2¹⁰ = 78802881253 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 (78802882297) 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, 5628777299 + ... + 5628777312.

It is an arithmetic number, because the mean of its divisors is an integer number (22515109224).

Almost surely, 2^78802882277 is an apocalyptic number.

It is an amenable number.

78802882277 is a deficient number, since it is larger than the sum of its proper divisors (11257554619).

78802882277 is a wasteful number, since it uses less digits than its factorization.

78802882277 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11257554618.

The product of its (nonzero) digits is 11239424, while the sum is 59.

The spelling of 78802882277 in words is "seventy-eight billion, eight hundred two million, eight hundred eighty-two thousand, two hundred seventy-seven".