64188281106813 has 32 divisors (see below), whose sum is σ = 93002062970880. Its totient is φ = 39260739006720.

The previous prime is 64188281106779. The next prime is 64188281106853. The reversal of 64188281106813 is 31860118288146.

It is not a de Polignac number, because 64188281106813 - 2²² = 64188276912509 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64188281106853) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 132539473 + ... + 133022886.

It is an arithmetic number, because the mean of its divisors is an integer number (2906314467840).

Almost surely, 2^{64188281106813} is an apocalyptic number.

It is an amenable number.

64188281106813 is a deficient number, since it is larger than the sum of its proper divisors (28813781864067).

64188281106813 is a wasteful number, since it uses less digits than its factorization.

64188281106813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265562529.

The product of its (nonzero) digits is 3538944, while the sum is 57.

The spelling of 64188281106813 in words is "sixty-four trillion, one hundred eighty-eight billion, two hundred eighty-one million, one hundred six thousand, eight hundred thirteen".