64193006573 has 4 divisors (see below), whose sum is σ = 64429881408. Its totient is φ = 63956131740.

The previous prime is 64193006533. The next prime is 64193006653. The reversal of 64193006573 is 37560039146.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 64193006573 - 2¹⁰ = 64193005549 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 (64193006533) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 118437011 + ... + 118437552.

It is an arithmetic number, because the mean of its divisors is an integer number (16107470352).

Almost surely, 2^64193006573 is an apocalyptic number.

It is an amenable number.

64193006573 is a deficient number, since it is larger than the sum of its proper divisors (236874835).

64193006573 is a wasteful number, since it uses less digits than its factorization.

64193006573 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236874834.

The product of its (nonzero) digits is 408240, while the sum is 44.

The spelling of 64193006573 in words is "sixty-four billion, one hundred ninety-three million, six thousand, five hundred seventy-three".