768450461 has 2 divisors, whose sum is σ = 768450462. Its totient is φ = 768450460.

The previous prime is 768450433. The next prime is 768450481. The reversal of 768450461 is 164054867.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 642876025 + 125574436 = 25355^2 + 11206^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-768450461 is a prime.

It is a super-2 number, since 2×768450461² = 1181032222022225042, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (768450481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 384225230 + 384225231.

It is an arithmetic number, because the mean of its divisors is an integer number (384225231).

Almost surely, 2^768450461 is an apocalyptic number.

It is an amenable number.

768450461 is a deficient number, since it is larger than the sum of its proper divisors (1).

768450461 is an equidigital number, since it uses as much as digits as its factorization.

768450461 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 161280, while the sum is 41.

The square root of 768450461 is about 27720.9390353213. The cubic root of 768450461 is about 915.9504038827.

The spelling of 768450461 in words is "seven hundred sixty-eight million, four hundred fifty thousand, four hundred sixty-one".