64446387141 has 16 divisors (see below), whose sum is σ = 88895878848. Its totient is φ = 41501328000.

The previous prime is 64446387097. The next prime is 64446387179. The reversal of 64446387141 is 14178364446.

64446387141 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-64446387141 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64446307141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2581411 + ... + 2606256.

It is an arithmetic number, because the mean of its divisors is an integer number (5555992428).

Almost surely, 2^64446387141 is an apocalyptic number.

It is an amenable number.

64446387141 is a deficient number, since it is larger than the sum of its proper divisors (24449491707).

64446387141 is a wasteful number, since it uses less digits than its factorization.

64446387141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5187812.

The product of its digits is 1548288, while the sum is 48.

The spelling of 64446387141 in words is "sixty-four billion, four hundred forty-six million, three hundred eighty-seven thousand, one hundred forty-one".