466751981 has 2 divisors, whose sum is σ = 466751982. Its totient is φ = 466751980.

The previous prime is 466751977. The next prime is 466752029. The reversal of 466751981 is 189157664.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 406828900 + 59923081 = 20170^2 + 7741^2 .

It is a cyclic number.

It is not a de Polignac number, because 466751981 - 2² = 466751977 is a prime.

It is a super-2 number, since 2×466751981² = 435714823534848722, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (466751921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 233375990 + 233375991.

It is an arithmetic number, because the mean of its divisors is an integer number (233375991).

Almost surely, 2^466751981 is an apocalyptic number.

It is an amenable number.

466751981 is a deficient number, since it is larger than the sum of its proper divisors (1).

466751981 is an equidigital number, since it uses as much as digits as its factorization.

466751981 is an evil number, because the sum of its binary digits is even.

The product of its digits is 362880, while the sum is 47.

The square root of 466751981 is about 21604.4435475668. The cubic root of 466751981 is about 775.7028551317.

The spelling of 466751981 in words is "four hundred sixty-six million, seven hundred fifty-one thousand, nine hundred eighty-one".