380635621013 has 2 divisors, whose sum is σ = 380635621014. Its totient is φ = 380635621012.

The previous prime is 380635621007. The next prime is 380635621081. The reversal of 380635621013 is 310126536083.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 309422962564 + 71212658449 = 556258^2 + 266857^2 .

It is a cyclic number.

It is not a de Polignac number, because 380635621013 - 2⁶ = 380635620949 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (380635623013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 190317810506 + 190317810507.

It is an arithmetic number, because the mean of its divisors is an integer number (190317810507).

Almost surely, 2^380635621013 is an apocalyptic number.

It is an amenable number.

380635621013 is a deficient number, since it is larger than the sum of its proper divisors (1).

380635621013 is an equidigital number, since it uses as much as digits as its factorization.

380635621013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 77760, while the sum is 38.

The spelling of 380635621013 in words is "three hundred eighty billion, six hundred thirty-five million, six hundred twenty-one thousand, thirteen".