469788661 has 16 divisors (see below), whose sum is σ = 521251200. Its totient is φ = 421581888.

The previous prime is 469788643. The next prime is 469788703. The reversal of 469788661 is 166887964.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 469788661 - 2⁵ = 469788629 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 (469728661) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21160 + ... + 37246.

It is an arithmetic number, because the mean of its divisors is an integer number (32578200).

Almost surely, 2^469788661 is an apocalyptic number.

It is an amenable number.

469788661 is a deficient number, since it is larger than the sum of its proper divisors (51462539).

469788661 is a wasteful number, since it uses less digits than its factorization.

469788661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16188.

The product of its digits is 3483648, while the sum is 55.

The square root of 469788661 is about 21674.6086700545. The cubic root of 469788661 is about 777.3814563395.

The spelling of 469788661 in words is "four hundred sixty-nine million, seven hundred eighty-eight thousand, six hundred sixty-one".