464572505447 has 4 divisors (see below), whose sum is σ = 464575193496. Its totient is φ = 464569817400.

The previous prime is 464572505389. The next prime is 464572505563. The reversal of 464572505447 is 744505275464.

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

It is a cyclic number.

It is not a de Polignac number, because 464572505447 - 2¹⁴ = 464572489063 is a prime.

It is a super-2 number, since 2×464572505447² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (464572501447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1065548 + ... + 1436849.

It is an arithmetic number, because the mean of its divisors is an integer number (116143798374).

Almost surely, 2^464572505447 is an apocalyptic number.

464572505447 is a deficient number, since it is larger than the sum of its proper divisors (2688049).

464572505447 is a wasteful number, since it uses less digits than its factorization.

464572505447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2688048.

The product of its (nonzero) digits is 18816000, while the sum is 53.

The spelling of 464572505447 in words is "four hundred sixty-four billion, five hundred seventy-two million, five hundred five thousand, four hundred forty-seven".