3451642643461 has 2 divisors, whose sum is σ = 3451642643462. Its totient is φ = 3451642643460.

The previous prime is 3451642643443. The next prime is 3451642643489. The reversal of 3451642643461 is 1643462461543.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3258407671236 + 193234972225 = 1805106^2 + 439585^2 .

It is a cyclic number.

It is not a de Polignac number, because 3451642643461 - 2¹³ = 3451642635269 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3451642643431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1725821321730 + 1725821321731.

It is an arithmetic number, because the mean of its divisors is an integer number (1725821321731).

Almost surely, 2^{3451642643461} is an apocalyptic number.

It is an amenable number.

3451642643461 is a deficient number, since it is larger than the sum of its proper divisors (1).

3451642643461 is an equidigital number, since it uses as much as digits as its factorization.

3451642643461 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4976640, while the sum is 49.

The spelling of 3451642643461 in words is "three trillion, four hundred fifty-one billion, six hundred forty-two million, six hundred forty-three thousand, four hundred sixty-one".