136078453387 has 2 divisors, whose sum is σ = 136078453388. Its totient is φ = 136078453386.

The previous prime is 136078453361. The next prime is 136078453393. The reversal of 136078453387 is 783354870631.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (783354870631) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-136078453387 is a prime.

It is not a weakly prime, because it can be changed into another prime (136078451387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68039226693 + 68039226694.

It is an arithmetic number, because the mean of its divisors is an integer number (68039226694).

Almost surely, 2^136078453387 is an apocalyptic number.

136078453387 is a deficient number, since it is larger than the sum of its proper divisors (1).

136078453387 is an equidigital number, since it uses as much as digits as its factorization.

136078453387 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10160640, while the sum is 55.

The spelling of 136078453387 in words is "one hundred thirty-six billion, seventy-eight million, four hundred fifty-three thousand, three hundred eighty-seven".