78839819714041 has 3 divisors (see below), whose sum is σ = 78839828593221. Its totient is φ = 78839810834862.

The previous prime is 78839819714023. The next prime is 78839819714057. The reversal of 78839819714041 is 14041791893887.

It is a happy number.

The square root of 78839819714041 is 8879179.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 78839819714041 - 2¹¹ = 78839819711993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78839819724041) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 4439590 + ... + 13318768.

It is an arithmetic number, because the mean of its divisors is an integer number (26279942864407).

Almost surely, 2^{78839819714041} is an apocalyptic number.

78839819714041 is the 8879179-th square number.

78839819714041 is the 4439590-th centered octagonal number.

It is an amenable number.

78839819714041 is a deficient number, since it is larger than the sum of its proper divisors (8879180).

78839819714041 is an frugal number, since it uses more digits than its factorization.

78839819714041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17758358 (or 8879179 counting only the distinct ones).

The product of its (nonzero) digits is 97542144, while the sum is 70.

The spelling of 78839819714041 in words is "seventy-eight trillion, eight hundred thirty-nine billion, eight hundred nineteen million, seven hundred fourteen thousand, forty-one".