378800687269 has 2 divisors, whose sum is σ = 378800687270. Its totient is φ = 378800687268.

The previous prime is 378800687197. The next prime is 378800687329. The reversal of 378800687269 is 962786008873.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 371047884769 + 7752802500 = 609137^2 + 88050^2 .

It is a cyclic number.

It is not a de Polignac number, because 378800687269 - 2¹³ = 378800679077 is a prime.

It is a super-2 number, since 2×378800687269² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 378800687269.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (378800087269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 189400343634 + 189400343635.

It is an arithmetic number, because the mean of its divisors is an integer number (189400343635).

Almost surely, 2^378800687269 is an apocalyptic number.

It is an amenable number.

378800687269 is a deficient number, since it is larger than the sum of its proper divisors (1).

378800687269 is an equidigital number, since it uses as much as digits as its factorization.

378800687269 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48771072, while the sum is 64.

The spelling of 378800687269 in words is "three hundred seventy-eight billion, eight hundred million, six hundred eighty-seven thousand, two hundred sixty-nine".