136878224035505 has 16 divisors (see below), whose sum is σ = 169918189801920. Its totient is φ = 105726382786752.

The previous prime is 136878224035453. The next prime is 136878224035507. The reversal of 136878224035505 is 505530422878631.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 136878224035505 - 2⁸ = 136878224035249 is a prime.

It is a super-2 number, since 2×136878224035505² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (136878224035507) 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, 84631022 + ... + 86233208.

It is an arithmetic number, because the mean of its divisors is an integer number (10619886862620).

Almost surely, 2^{136878224035505} is an apocalyptic number.

It is an amenable number.

136878224035505 is a deficient number, since it is larger than the sum of its proper divisors (33039965766415).

136878224035505 is a wasteful number, since it uses less digits than its factorization.

136878224035505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2191408.

The product of its (nonzero) digits is 48384000, while the sum is 59.

The spelling of 136878224035505 in words is "one hundred thirty-six trillion, eight hundred seventy-eight billion, two hundred twenty-four million, thirty-five thousand, five hundred five".