378299734691 has 2 divisors, whose sum is σ = 378299734692. Its totient is φ = 378299734690.

The previous prime is 378299734663. The next prime is 378299734697. The reversal of 378299734691 is 196437992873.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 378299734691 - 2³⁰ = 377225992867 is a prime.

It is a super-2 number, since 2×378299734691² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (378299734697) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 189149867345 + 189149867346.

It is an arithmetic number, because the mean of its divisors is an integer number (189149867346).

Almost surely, 2^378299734691 is an apocalyptic number.

378299734691 is a deficient number, since it is larger than the sum of its proper divisors (1).

378299734691 is an equidigital number, since it uses as much as digits as its factorization.

378299734691 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 123451776, while the sum is 68.

The spelling of 378299734691 in words is "three hundred seventy-eight billion, two hundred ninety-nine million, seven hundred thirty-four thousand, six hundred ninety-one".