1623260623261 has 2 divisors, whose sum is σ = 1623260623262. Its totient is φ = 1623260623260.

The previous prime is 1623260623249. The next prime is 1623260623273.

1623260623261 is nontrivially palindromic in base 10.

It is a balanced prime because it is at equal distance from previous prime (1623260623249) and next prime (1623260623273).

It can be written as a sum of positive squares in only one way, i.e., 1388612419236 + 234648204025 = 1178394^2 + 484405^2 .

It is a palprime.

It is a cyclic number.

It is not a de Polignac number, because 1623260623261 - 2⁷ = 1623260623133 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1623260623211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 811630311630 + 811630311631.

It is an arithmetic number, because the mean of its divisors is an integer number (811630311631).

Almost surely, 2^{1623260623261} is an apocalyptic number.

It is an amenable number.

1623260623261 is a deficient number, since it is larger than the sum of its proper divisors (1).

1623260623261 is an equidigital number, since it uses as much as digits as its factorization.

1623260623261 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 186624, while the sum is 40.

The spelling of 1623260623261 in words is "one trillion, six hundred twenty-three billion, two hundred sixty million, six hundred twenty-three thousand, two hundred sixty-one".