136888903439 has 2 divisors, whose sum is σ = 136888903440. Its totient is φ = 136888903438.

The previous prime is 136888903427. The next prime is 136888903469. The reversal of 136888903439 is 934309888631.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 136888903439 - 2⁴ = 136888903423 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (136888903409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68444451719 + 68444451720.

It is an arithmetic number, because the mean of its divisors is an integer number (68444451720).

Almost surely, 2^136888903439 is an apocalyptic number.

136888903439 is a deficient number, since it is larger than the sum of its proper divisors (1).

136888903439 is an equidigital number, since it uses as much as digits as its factorization.

136888903439 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 26873856, while the sum is 62.

The spelling of 136888903439 in words is "one hundred thirty-six billion, eight hundred eighty-eight million, nine hundred three thousand, four hundred thirty-nine".