136812833401405 has 24 divisors (see below), whose sum is σ = 191141257469400. Its totient is φ = 93735077627520.

The previous prime is 136812833401403. The next prime is 136812833401421. The reversal of 136812833401405 is 504104338218631.

It can be written as a sum of positive squares in 4 ways, for example, as 49738348661764 + 87074484739641 = 7052542^2 + 9331371^2 .

It is not a de Polignac number, because 136812833401405 - 2¹ = 136812833401403 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136812833401403) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 236128830 + ... + 236707519.

It is an arithmetic number, because the mean of its divisors is an integer number (7964219061225).

Almost surely, 2^{136812833401405} is an apocalyptic number.

It is an amenable number.

136812833401405 is a deficient number, since it is larger than the sum of its proper divisors (54328424067995).

136812833401405 is a wasteful number, since it uses less digits than its factorization.

136812833401405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 472837549 (or 472837542 counting only the distinct ones).

The product of its (nonzero) digits is 1658880, while the sum is 49.

The spelling of 136812833401405 in words is "one hundred thirty-six trillion, eight hundred twelve billion, eight hundred thirty-three million, four hundred one thousand, four hundred five".