136402771573 has 4 divisors (see below), whose sum is σ = 136586356128. Its totient is φ = 136219187020.

The previous prime is 136402771567. The next prime is 136402771643. The reversal of 136402771573 is 375177204631.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 375177204631 = 997 ⋅376306123.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-136402771573 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136402771523) 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, 91791163 + ... + 91792648.

It is an arithmetic number, because the mean of its divisors is an integer number (34146589032).

Almost surely, 2^136402771573 is an apocalyptic number.

It is an amenable number.

136402771573 is a deficient number, since it is larger than the sum of its proper divisors (183584555).

136402771573 is an equidigital number, since it uses as much as digits as its factorization.

136402771573 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183584554.

The product of its (nonzero) digits is 740880, while the sum is 46.

The spelling of 136402771573 in words is "one hundred thirty-six billion, four hundred two million, seven hundred seventy-one thousand, five hundred seventy-three".