68601204278837 has 4 divisors (see below), whose sum is σ = 68601473418060. Its totient is φ = 68600935139616.

The previous prime is 68601204278813. The next prime is 68601204278839. The reversal of 68601204278837 is 73887240210686.

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 11083632565681 + 57517571713156 = 3329209^2 + 7584034^2 .

It is a cyclic number.

It is not a de Polignac number, because 68601204278837 - 2¹⁰ = 68601204277813 is a prime.

It is a super-2 number, since 2×68601204278837² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 68601204278837.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68601204278839) 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, 134186912 + ... + 134697177.

It is an arithmetic number, because the mean of its divisors is an integer number (17150368354515).

Almost surely, 2^{68601204278837} is an apocalyptic number.

It is an amenable number.

68601204278837 is a deficient number, since it is larger than the sum of its proper divisors (269139223).

68601204278837 is a wasteful number, since it uses less digits than its factorization.

68601204278837 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269139222.

The product of its (nonzero) digits is 43352064, while the sum is 62.

The spelling of 68601204278837 in words is "sixty-eight trillion, six hundred one billion, two hundred four million, two hundred seventy-eight thousand, eight hundred thirty-seven".