61868043564801 has 8 divisors (see below), whose sum is σ = 82490776646880. Its totient is φ = 41245336429632.

The previous prime is 61868043564749. The next prime is 61868043564839. The reversal of 61868043564801 is 10846534086816.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 61868043564801 - 2⁶ = 61868043564737 is a prime.

It is a super-2 number, since 2×61868043564801² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (61868043564101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5001 + ... + 11123673.

It is an arithmetic number, because the mean of its divisors is an integer number (10311347080860).

Almost surely, 2^{61868043564801} is an apocalyptic number.

It is an amenable number.

61868043564801 is a deficient number, since it is larger than the sum of its proper divisors (20622733082079).

61868043564801 is a wasteful number, since it uses less digits than its factorization.

61868043564801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12973455.

The product of its (nonzero) digits is 26542080, while the sum is 60.

The spelling of 61868043564801 in words is "sixty-one trillion, eight hundred sixty-eight billion, forty-three million, five hundred sixty-four thousand, eight hundred one".