114778239421 has 2 divisors, whose sum is σ = 114778239422. Its totient is φ = 114778239420.

The previous prime is 114778239419. The next prime is 114778239467. The reversal of 114778239421 is 124932877411.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 98702788900 + 16075450521 = 314170^2 + 126789^2 .

It is an emirp because it is prime and its reverse (124932877411) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 114778239421 - 2¹ = 114778239419 is a prime.

Together with 114778239419, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (114778239491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57389119710 + 57389119711.

It is an arithmetic number, because the mean of its divisors is an integer number (57389119711).

Almost surely, 2^114778239421 is an apocalyptic number.

It is an amenable number.

114778239421 is a deficient number, since it is larger than the sum of its proper divisors (1).

114778239421 is an equidigital number, since it uses as much as digits as its factorization.

114778239421 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 677376, while the sum is 49.

The spelling of 114778239421 in words is "one hundred fourteen billion, seven hundred seventy-eight million, two hundred thirty-nine thousand, four hundred twenty-one".