118378354453 has 2 divisors, whose sum is σ = 118378354454. Its totient is φ = 118378354452.

The previous prime is 118378354439. The next prime is 118378354477. The reversal of 118378354453 is 354453873811.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 116457022564 + 1921331889 = 341258^2 + 43833^2 .

It is a cyclic number.

It is not a de Polignac number, because 118378354453 - 2⁹ = 118378353941 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 118378354453.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (118378354153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59189177226 + 59189177227.

It is an arithmetic number, because the mean of its divisors is an integer number (59189177227).

Almost surely, 2^118378354453 is an apocalyptic number.

It is an amenable number.

118378354453 is a deficient number, since it is larger than the sum of its proper divisors (1).

118378354453 is an equidigital number, since it uses as much as digits as its factorization.

118378354453 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4838400, while the sum is 52.

The spelling of 118378354453 in words is "one hundred eighteen billion, three hundred seventy-eight million, three hundred fifty-four thousand, four hundred fifty-three".