78636063341 has 6 divisors (see below), whose sum is σ = 86434681326. Its totient is φ = 71487330200.

The previous prime is 78636063313. The next prime is 78636063343. The reversal of 78636063341 is 14336063687.

It can be written as a sum of positive squares in only one way, i.e., 46246502500 + 32389560841 = 215050^2 + 179971^2 .

It is a de Polignac number, because none of the positive numbers 2^k-78636063341 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 (78636063343) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 324942290 + ... + 324942531.

It is an arithmetic number, because the mean of its divisors is an integer number (14405780221).

Almost surely, 2^78636063341 is an apocalyptic number.

It is an amenable number.

78636063341 is a deficient number, since it is larger than the sum of its proper divisors (7798617985).

78636063341 is a wasteful number, since it uses less digits than its factorization.

78636063341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 649884843 (or 649884832 counting only the distinct ones).

The product of its (nonzero) digits is 1306368, while the sum is 47.

The spelling of 78636063341 in words is "seventy-eight billion, six hundred thirty-six million, sixty-three thousand, three hundred forty-one".