118277938393 has 2 divisors, whose sum is σ = 118277938394. Its totient is φ = 118277938392.

The previous prime is 118277938349. The next prime is 118277938411. The reversal of 118277938393 is 393839772811.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 62538505929 + 55739432464 = 250077^2 + 236092^2 .

It is an emirp because it is prime and its reverse (393839772811) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 118277938393 - 2¹⁷ = 118277807321 is a prime.

It is not a weakly prime, because it can be changed into another prime (118277938343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59138969196 + 59138969197.

It is an arithmetic number, because the mean of its divisors is an integer number (59138969197).

Almost surely, 2^118277938393 is an apocalyptic number.

It is an amenable number.

118277938393 is a deficient number, since it is larger than the sum of its proper divisors (1).

118277938393 is an equidigital number, since it uses as much as digits as its factorization.

118277938393 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13716864, while the sum is 61.

The spelling of 118277938393 in words is "one hundred eighteen billion, two hundred seventy-seven million, nine hundred thirty-eight thousand, three hundred ninety-three".