136796478461 has 4 divisors (see below), whose sum is σ = 136812793500. Its totient is φ = 136780163424.

The previous prime is 136796478457. The next prime is 136796478473. The reversal of 136796478461 is 164874697631.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 88134765625 + 48661712836 = 296875^2 + 220594^2 .

It is a cyclic number.

It is not a de Polignac number, because 136796478461 - 2² = 136796478457 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 136796478394 and 136796478403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136796478451) 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, 8144936 + ... + 8161713.

It is an arithmetic number, because the mean of its divisors is an integer number (34203198375).

Almost surely, 2^136796478461 is an apocalyptic number.

It is an amenable number.

136796478461 is a deficient number, since it is larger than the sum of its proper divisors (16315039).

136796478461 is an equidigital number, since it uses as much as digits as its factorization.

136796478461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16315038.

The product of its digits is 36578304, while the sum is 62.

The spelling of 136796478461 in words is "one hundred thirty-six billion, seven hundred ninety-six million, four hundred seventy-eight thousand, four hundred sixty-one".