136577761470445 has 4 divisors (see below), whose sum is σ = 163893313764540. Its totient is φ = 109262209176352.

The previous prime is 136577761470443. The next prime is 136577761470499. The reversal of 136577761470445 is 544074167775631.

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 96693749556804 + 39884011913641 = 9833298^2 + 6315379^2 .

It is a cyclic number.

It is not a de Polignac number, because 136577761470445 - 2¹ = 136577761470443 is a prime.

It is a Smith number, since the sum of its digits (67) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136577761470443) 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, 13657776147040 + ... + 13657776147049.

It is an arithmetic number, because the mean of its divisors is an integer number (40973328441135).

Almost surely, 2^{136577761470445} is an apocalyptic number.

It is an amenable number.

136577761470445 is a deficient number, since it is larger than the sum of its proper divisors (27315552294095).

136577761470445 is an equidigital number, since it uses as much as digits as its factorization.

136577761470445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27315552294094.

The product of its (nonzero) digits is 414892800, while the sum is 67.

The spelling of 136577761470445 in words is "one hundred thirty-six trillion, five hundred seventy-seven billion, seven hundred sixty-one million, four hundred seventy thousand, four hundred forty-five".