64532061453 has 24 divisors (see below), whose sum is σ = 93264032928. Its totient is φ = 39655523808.

The previous prime is 64532061409. The next prime is 64532061569. The reversal of 64532061453 is 35416023546.

It is not a de Polignac number, because 64532061453 - 2⁸ = 64532061197 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64532061403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 765151 + ... + 845292.

It is an arithmetic number, because the mean of its divisors is an integer number (3886001372).

Almost surely, 2^64532061453 is an apocalyptic number.

It is an amenable number.

64532061453 is a deficient number, since it is larger than the sum of its proper divisors (28731971475).

64532061453 is a wasteful number, since it uses less digits than its factorization.

64532061453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1610521 (or 1610502 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 39.

Adding to 64532061453 its reverse (35416023546), we get a palindrome (99948084999).

The spelling of 64532061453 in words is "sixty-four billion, five hundred thirty-two million, sixty-one thousand, four hundred fifty-three".