1626061874761 has 2 divisors, whose sum is σ = 1626061874762. Its totient is φ = 1626061874760.

The previous prime is 1626061874699. The next prime is 1626061874771. The reversal of 1626061874761 is 1674781606261.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1411641015625 + 214420859136 = 1188125^2 + 463056^2 .

It is an emirp because it is prime and its reverse (1674781606261) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1626061874761 - 2³⁹ = 1076306060873 is a prime.

It is not a weakly prime, because it can be changed into another prime (1626061874771) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 813030937380 + 813030937381.

It is an arithmetic number, because the mean of its divisors is an integer number (813030937381).

Almost surely, 2^{1626061874761} is an apocalyptic number.

It is an amenable number.

1626061874761 is a deficient number, since it is larger than the sum of its proper divisors (1).

1626061874761 is an equidigital number, since it uses as much as digits as its factorization.

1626061874761 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4064256, while the sum is 55.

The spelling of 1626061874761 in words is "one trillion, six hundred twenty-six billion, sixty-one million, eight hundred seventy-four thousand, seven hundred sixty-one".