135878263077 has 4 divisors (see below), whose sum is σ = 181171017440. Its totient is φ = 90585508716.

The previous prime is 135878263067. The next prime is 135878263111. The reversal of 135878263077 is 770362878531.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 135878263077 - 2¹⁰ = 135878262053 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135878263007) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22646377177 + ... + 22646377182.

It is an arithmetic number, because the mean of its divisors is an integer number (45292754360).

Almost surely, 2^135878263077 is an apocalyptic number.

It is an amenable number.

135878263077 is a deficient number, since it is larger than the sum of its proper divisors (45292754363).

135878263077 is an equidigital number, since it uses as much as digits as its factorization.

135878263077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45292754362.

The product of its (nonzero) digits is 11854080, while the sum is 57.

The spelling of 135878263077 in words is "one hundred thirty-five billion, eight hundred seventy-eight million, two hundred sixty-three thousand, seventy-seven".