379982399136491 has 2 divisors, whose sum is σ = 379982399136492. Its totient is φ = 379982399136490.

The previous prime is 379982399136433. The next prime is 379982399136539. The reversal of 379982399136491 is 194631993289973.

It is a strong prime.

It is an emirp because it is prime and its reverse (194631993289973) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 379982399136491 - 2¹⁸ = 379982398874347 is a prime.

It is not a weakly prime, because it can be changed into another prime (379982399106491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 189991199568245 + 189991199568246.

It is an arithmetic number, because the mean of its divisors is an integer number (189991199568246).

Almost surely, 2^{379982399136491} is an apocalyptic number.

379982399136491 is a deficient number, since it is larger than the sum of its proper divisors (1).

379982399136491 is an equidigital number, since it uses as much as digits as its factorization.

379982399136491 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4285540224, while the sum is 83.

The spelling of 379982399136491 in words is "three hundred seventy-nine trillion, nine hundred eighty-two billion, three hundred ninety-nine million, one hundred thirty-six thousand, four hundred ninety-one".