469456558561 has 3 divisors (see below), whose sum is σ = 469457243731. Its totient is φ = 469455873392.

The previous prime is 469456558559. The next prime is 469456558579. The reversal of 469456558561 is 165855654964.

It is a happy number.

The square root of 469456558561 is 685169.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 435113056161 + 34343502400 = 659631^2 + 185320^2 .

It is not a de Polignac number, because 469456558561 - 2¹ = 469456558559 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 469456558493 and 469456558502.

It is not an unprimeable number, because it can be changed into a prime (469456558511) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 342585 + ... + 1027753.

Almost surely, 2^469456558561 is an apocalyptic number.

469456558561 is the 685169-th square number.

469456558561 is the 342585-th centered octagonal number.

It is an amenable number.

469456558561 is a deficient number, since it is larger than the sum of its proper divisors (685170).

469456558561 is an frugal number, since it uses more digits than its factorization.

469456558561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1370338 (or 685169 counting only the distinct ones).

The product of its digits is 155520000, while the sum is 64.

Multiplying 469456558561 by its sum of digits (64), we get a square (30045219747904 = 5481352²).

The spelling of 469456558561 in words is "four hundred sixty-nine billion, four hundred fifty-six million, five hundred fifty-eight thousand, five hundred sixty-one".