468609481 has 2 divisors, whose sum is σ = 468609482. Its totient is φ = 468609480.

The previous prime is 468609473. The next prime is 468609499. The reversal of 468609481 is 184906864.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 312759225 + 155850256 = 17685^2 + 12484^2 .

It is a cyclic number.

It is not a de Polignac number, because 468609481 - 2³ = 468609473 is a prime.

It is a super-2 number, since 2×468609481² = 439189691366178722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (468609781) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 234304740 + 234304741.

It is an arithmetic number, because the mean of its divisors is an integer number (234304741).

Almost surely, 2^468609481 is an apocalyptic number.

It is an amenable number.

468609481 is a deficient number, since it is larger than the sum of its proper divisors (1).

468609481 is an equidigital number, since it uses as much as digits as its factorization.

468609481 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 331776, while the sum is 46.

The square root of 468609481 is about 21647.3897040729. The cubic root of 468609481 is about 776.7304964722.

The spelling of 468609481 in words is "four hundred sixty-eight million, six hundred nine thousand, four hundred eighty-one".