383997493079 has 2 divisors, whose sum is σ = 383997493080. Its totient is φ = 383997493078.

The previous prime is 383997493057. The next prime is 383997493081. The reversal of 383997493079 is 970394799383.

It is a strong prime.

It is an emirp because it is prime and its reverse (970394799383) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 383997493079 - 2²⁴ = 383980715863 is a prime.

Together with 383997493081, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (383997493379) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 191998746539 + 191998746540.

It is an arithmetic number, because the mean of its divisors is an integer number (191998746540).

Almost surely, 2^383997493079 is an apocalyptic number.

383997493079 is a deficient number, since it is larger than the sum of its proper divisors (1).

383997493079 is an equidigital number, since it uses as much as digits as its factorization.

383997493079 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 277766496, while the sum is 71.

The spelling of 383997493079 in words is "three hundred eighty-three billion, nine hundred ninety-seven million, four hundred ninety-three thousand, seventy-nine".