380387678791 has 2 divisors, whose sum is σ = 380387678792. Its totient is φ = 380387678790.

The previous prime is 380387678731. The next prime is 380387678857. The reversal of 380387678791 is 197876783083.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 380387678791 - 2³¹ = 378240195143 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (380387678731) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 190193839395 + 190193839396.

It is an arithmetic number, because the mean of its divisors is an integer number (190193839396).

Almost surely, 2^380387678791 is an apocalyptic number.

380387678791 is a deficient number, since it is larger than the sum of its proper divisors (1).

380387678791 is an equidigital number, since it uses as much as digits as its factorization.

380387678791 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 85349376, while the sum is 67.

The spelling of 380387678791 in words is "three hundred eighty billion, three hundred eighty-seven million, six hundred seventy-eight thousand, seven hundred ninety-one".