380636605637 has 2 divisors, whose sum is σ = 380636605638. Its totient is φ = 380636605636.

The previous prime is 380636605627. The next prime is 380636605709. The reversal of 380636605637 is 736506636083.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 372009725476 + 8626880161 = 609926^2 + 92881^2 .

It is a cyclic number.

It is not a de Polignac number, because 380636605637 - 2²⁶ = 380569496773 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (380636605607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 190318302818 + 190318302819.

It is an arithmetic number, because the mean of its divisors is an integer number (190318302819).

Almost surely, 2^380636605637 is an apocalyptic number.

It is an amenable number.

380636605637 is a deficient number, since it is larger than the sum of its proper divisors (1).

380636605637 is an equidigital number, since it uses as much as digits as its factorization.

380636605637 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9797760, while the sum is 53.

The spelling of 380636605637 in words is "three hundred eighty billion, six hundred thirty-six million, six hundred five thousand, six hundred thirty-seven".