64332135373 has 8 divisors (see below), whose sum is σ = 70182887040. Its totient is φ = 58481779680.

The previous prime is 64332135367. The next prime is 64332135383. The reversal of 64332135373 is 37353123346.

It is a happy number.

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 64332135373 - 2²¹ = 64330038221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64332135383) 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, 316588 + ... + 478426.

It is an arithmetic number, because the mean of its divisors is an integer number (8772860880).

Almost surely, 2^64332135373 is an apocalyptic number.

It is an amenable number.

64332135373 is a deficient number, since it is larger than the sum of its proper divisors (5850751667).

64332135373 is a wasteful number, since it uses less digits than its factorization.

64332135373 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197987.

The product of its digits is 408240, while the sum is 40.

The spelling of 64332135373 in words is "sixty-four billion, three hundred thirty-two million, one hundred thirty-five thousand, three hundred seventy-three".