378240701749 has 2 divisors, whose sum is σ = 378240701750. Its totient is φ = 378240701748.

The previous prime is 378240701633. The next prime is 378240701759. The reversal of 378240701749 is 947107042873.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 292870380625 + 85370321124 = 541175^2 + 292182^2 .

It is a cyclic number.

It is not a de Polignac number, because 378240701749 - 2²⁵ = 378207147317 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 378240701696 and 378240701705.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (378240701759) 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, 189120350874 + 189120350875.

It is an arithmetic number, because the mean of its divisors is an integer number (189120350875).

Almost surely, 2^378240701749 is an apocalyptic number.

It is an amenable number.

378240701749 is a deficient number, since it is larger than the sum of its proper divisors (1).

378240701749 is an equidigital number, since it uses as much as digits as its factorization.

378240701749 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2370816, while the sum is 52.

The spelling of 378240701749 in words is "three hundred seventy-eight billion, two hundred forty million, seven hundred one thousand, seven hundred forty-nine".