136400746277 has 4 divisors (see below), whose sum is σ = 136904070336. Its totient is φ = 135897422220.

The previous prime is 136400746271. The next prime is 136400746327. The reversal of 136400746277 is 772647004631.

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: 772647004631 = 120079 ⋅6434489.

It is a cyclic number.

It is not a de Polignac number, because 136400746277 - 2⁸ = 136400746021 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 (136400746271) 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, 251661623 + ... + 251662164.

It is an arithmetic number, because the mean of its divisors is an integer number (34226017584).

Almost surely, 2^136400746277 is an apocalyptic number.

It is an amenable number.

136400746277 is a deficient number, since it is larger than the sum of its proper divisors (503324059).

136400746277 is an equidigital number, since it uses as much as digits as its factorization.

136400746277 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 503324058.

The product of its (nonzero) digits is 1185408, while the sum is 47.

The spelling of 136400746277 in words is "one hundred thirty-six billion, four hundred million, seven hundred forty-six thousand, two hundred seventy-seven".