80778614814196 has 12 divisors (see below), whose sum is σ = 152236620226852. Its totient is φ = 37282437606528.

The previous prime is 80778614814167. The next prime is 80778614814197. The reversal of 80778614814196 is 69141841687708.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 13753446942096 + 67025167872100 = 3708564^2 + 8186890^2 .

It is a super-2 number, since 2×80778614814196² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80778614814197) 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, 776717450085 + ... + 776717450188.

Almost surely, 2^{80778614814196} is an apocalyptic number.

It is an amenable number.

80778614814196 is a deficient number, since it is larger than the sum of its proper divisors (71458005412656).

80778614814196 is a wasteful number, since it uses less digits than its factorization.

80778614814196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1553434900290 (or 1553434900288 counting only the distinct ones).

The product of its (nonzero) digits is 130056192, while the sum is 70.

The spelling of 80778614814196 in words is "eighty trillion, seven hundred seventy-eight billion, six hundred fourteen million, eight hundred fourteen thousand, one hundred ninety-six".