64360344245 has 4 divisors (see below), whose sum is σ = 77232413100. Its totient is φ = 51488275392.

The previous prime is 64360344229. The next prime is 64360344263. The reversal of 64360344245 is 54244306346.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 39901261009 + 24459083236 = 199753^2 + 156394^2 .

It is a cyclic number.

It is not a de Polignac number, because 64360344245 - 2⁴ = 64360344229 is a prime.

It is a super-2 number, since 2×64360344245² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6436034420 + ... + 6436034429.

It is an arithmetic number, because the mean of its divisors is an integer number (19308103275).

Almost surely, 2^64360344245 is an apocalyptic number.

It is an amenable number.

64360344245 is a deficient number, since it is larger than the sum of its proper divisors (12872068855).

64360344245 is a wasteful number, since it uses less digits than its factorization.

64360344245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12872068854.

The product of its (nonzero) digits is 829440, while the sum is 41.

The spelling of 64360344245 in words is "sixty-four billion, three hundred sixty million, three hundred forty-four thousand, two hundred forty-five".