78602243365 has 16 divisors (see below), whose sum is σ = 97599181680. Its totient is φ = 60698534400.

The previous prime is 78602243353. The next prime is 78602243381. The reversal of 78602243365 is 56334220687.

It can be written as a sum of positive squares in 8 ways, for example, as 931897729 + 77670345636 = 30527^2 + 278694^2 .

It is not a de Polignac number, because 78602243365 - 2¹⁷ = 78602112293 is a prime.

It is a super-3 number, since 3×78602243365³ (a number of 34 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 544627 + ... + 673663.

It is an arithmetic number, because the mean of its divisors is an integer number (6099948855).

Almost surely, 2^78602243365 is an apocalyptic number.

It is an amenable number.

78602243365 is a deficient number, since it is larger than the sum of its proper divisors (18996938315).

78602243365 is a wasteful number, since it uses less digits than its factorization.

78602243365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133272.

The product of its (nonzero) digits is 1451520, while the sum is 46.

The spelling of 78602243365 in words is "seventy-eight billion, six hundred two million, two hundred forty-three thousand, three hundred sixty-five".