135690245779 has 8 divisors (see below), whose sum is σ = 148108764672. Its totient is φ = 123285567240.

The previous prime is 135690245753. The next prime is 135690245827. The reversal of 135690245779 is 977542096531.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 135690245779 - 2⁹ = 135690245267 is a prime.

It is not an unprimeable number, because it can be changed into a prime (135690245729) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3439579 + ... + 3478804.

It is an arithmetic number, because the mean of its divisors is an integer number (18513595584).

Almost surely, 2^135690245779 is an apocalyptic number.

135690245779 is a deficient number, since it is larger than the sum of its proper divisors (12418518893).

135690245779 is a wasteful number, since it uses less digits than its factorization.

135690245779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6920177.

The product of its (nonzero) digits is 14288400, while the sum is 58.

The spelling of 135690245779 in words is "one hundred thirty-five billion, six hundred ninety million, two hundred forty-five thousand, seven hundred seventy-nine".