642573350003527 has 4 divisors (see below), whose sum is σ = 642575236698360. Its totient is φ = 642571463308696.

The previous prime is 642573350003521. The next prime is 642573350003603. The reversal of 642573350003527 is 725300053375246.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-642573350003527 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 (642573350003521) 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, 942836452 + ... + 943517737.

It is an arithmetic number, because the mean of its divisors is an integer number (160643809174590).

Almost surely, 2^{642573350003527} is an apocalyptic number.

642573350003527 is a deficient number, since it is larger than the sum of its proper divisors (1886694833).

642573350003527 is a wasteful number, since it uses less digits than its factorization.

642573350003527 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1886694832.

The product of its (nonzero) digits is 15876000, while the sum is 52.

The spelling of 642573350003527 in words is "six hundred forty-two trillion, five hundred seventy-three billion, three hundred fifty million, three thousand, five hundred twenty-seven".