64383981141 has 32 divisors (see below), whose sum is σ = 89605232640. Its totient is φ = 41084656704.

The previous prime is 64383981071. The next prime is 64383981157. The reversal of 64383981141 is 14118938346.

It is not a de Polignac number, because 64383981141 - 2¹⁵ = 64383948373 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64383981841) 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, 6278080 + ... + 6288326.

It is an arithmetic number, because the mean of its divisors is an integer number (2800163520).

Almost surely, 2^64383981141 is an apocalyptic number.

It is an amenable number.

64383981141 is a deficient number, since it is larger than the sum of its proper divisors (25221251499).

64383981141 is a wasteful number, since it uses less digits than its factorization.

64383981141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11265.

The product of its digits is 497664, while the sum is 48.

The spelling of 64383981141 in words is "sixty-four billion, three hundred eighty-three million, nine hundred eighty-one thousand, one hundred forty-one".