80778888887708 has 24 divisors (see below), whose sum is σ = 154309849651440. Its totient is φ = 36694913141120.

The previous prime is 80778888887651. The next prime is 80778888887821.

80778888887708 is nontrivially palindromic in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 569018873 + ... + 569160816.

It is an arithmetic number, because the mean of its divisors is an integer number (6429577068810).

Almost surely, 2^{80778888887708} is an apocalyptic number.

It is an amenable number.

80778888887708 is a deficient number, since it is larger than the sum of its proper divisors (73530960763732).

80778888887708 is a wasteful number, since it uses less digits than its factorization.

80778888887708 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1138181317 (or 1138181315 counting only the distinct ones).

The product of its (nonzero) digits is 40282095616, while the sum is 92.

The spelling of 80778888887708 in words is "eighty trillion, seven hundred seventy-eight billion, eight hundred eighty-eight million, eight hundred eighty-seven thousand, seven hundred eight".