466121781 has 6 divisors (see below), whose sum is σ = 673287030. Its totient is φ = 310747848.

The previous prime is 466121779. The next prime is 466121783. The reversal of 466121781 is 187121664.

It is a happy number.

466121781 is a `hidden beast` number, since 466 + 121 + 78 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (466121779) and next prime (466121783).

It can be written as a sum of positive squares in only one way, i.e., 421686225 + 44435556 = 20535^2 + 6666^2 .

It is not a de Polignac number, because 466121781 - 2¹ = 466121779 is a prime.

It is a super-2 number, since 2×466121781² = 434539029445223922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (466121783) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 25895646 + ... + 25895663.

It is an arithmetic number, because the mean of its divisors is an integer number (112214505).

Almost surely, 2^466121781 is an apocalyptic number.

It is an amenable number.

466121781 is a deficient number, since it is larger than the sum of its proper divisors (207165249).

466121781 is a wasteful number, since it uses less digits than its factorization.

466121781 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51791315 (or 51791312 counting only the distinct ones).

The product of its digits is 16128, while the sum is 36.

The square root of 466121781 is about 21589.8536586055. The cubic root of 466121781 is about 775.3535846157.

The spelling of 466121781 in words is "four hundred sixty-six million, one hundred twenty-one thousand, seven hundred eighty-one".