64198811839813 has 8 divisors (see below), whose sum is σ = 74126463156032. Its totient is φ = 54460258644096.

The previous prime is 64198811839759. The next prime is 64198811839849. The reversal of 64198811839813 is 31893811889146.

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

It is a cyclic number.

It is not a de Polignac number, because 64198811839813 - 2¹³ = 64198811831621 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64198811834813) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47274529395 + ... + 47274530752.

It is an arithmetic number, because the mean of its divisors is an integer number (9265807894504).

Almost surely, 2^{64198811839813} is an apocalyptic number.

It is an amenable number.

64198811839813 is a deficient number, since it is larger than the sum of its proper divisors (9927651316219).

64198811839813 is an equidigital number, since it uses as much as digits as its factorization.

64198811839813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94549060251.

The product of its digits is 71663616, while the sum is 70.

The spelling of 64198811839813 in words is "sixty-four trillion, one hundred ninety-eight billion, eight hundred eleven million, eight hundred thirty-nine thousand, eight hundred thirteen".