136355081389779 has 16 divisors (see below), whose sum is σ = 218714917518080. Its totient is φ = 73816284661920.

The previous prime is 136355081389739. The next prime is 136355081389799. The reversal of 136355081389779 is 977983180553631.

It is not a de Polignac number, because 136355081389779 - 2¹³ = 136355081381587 is a prime.

It is a super-2 number, since 2×136355081389779² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 136355081389779.

It is not an unprimeable number, because it can be changed into a prime (136355081389739) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 170871028912 + ... + 170871029709.

It is an arithmetic number, because the mean of its divisors is an integer number (13669682344880).

Almost surely, 2^{136355081389779} is an apocalyptic number.

136355081389779 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

136355081389779 is a deficient number, since it is larger than the sum of its proper divisors (82359836128301).

136355081389779 is a wasteful number, since it uses less digits than its factorization.

136355081389779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 341742058650.

The product of its (nonzero) digits is 1028764800, while the sum is 75.

The spelling of 136355081389779 in words is "one hundred thirty-six trillion, three hundred fifty-five billion, eighty-one million, three hundred eighty-nine thousand, seven hundred seventy-nine".