1626265013 has 2 divisors, whose sum is σ = 1626265014. Its totient is φ = 1626265012.

The previous prime is 1626265009. The next prime is 1626265057. The reversal of 1626265013 is 3105626261.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 851589124 + 774675889 = 29182^2 + 27833^2 .

It is a cyclic number.

It is not a de Polignac number, because 1626265013 - 2² = 1626265009 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1626265313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 813132506 + 813132507.

It is an arithmetic number, because the mean of its divisors is an integer number (813132507).

Almost surely, 2^1626265013 is an apocalyptic number.

It is an amenable number.

1626265013 is a deficient number, since it is larger than the sum of its proper divisors (1).

1626265013 is an equidigital number, since it uses as much as digits as its factorization.

1626265013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 1626265013 is about 40326.9762441966. The cubic root of 1626265013 is about 1175.9723384692.

The spelling of 1626265013 in words is "one billion, six hundred twenty-six million, two hundred sixty-five thousand, thirteen".