136424728378832 has 40 divisors (see below), whose sum is σ = 264577880280840. Its totient is φ = 68146582487040.

The previous prime is 136424728378831. The next prime is 136424728378837. The reversal of 136424728378832 is 238873827424631.

It can be written as a sum of positive squares in 4 ways, for example, as 41734235721616 + 94690492657216 = 6460204^2 + 9730904^2 .

It is a super-2 number, since 2×136424728378832² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136424728378831) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 130698032 + ... + 131737712.

It is an arithmetic number, because the mean of its divisors is an integer number (6614447007021).

Almost surely, 2^{136424728378832} is an apocalyptic number.

It is an amenable number.

136424728378832 is a deficient number, since it is larger than the sum of its proper divisors (128153151902008).

136424728378832 is a wasteful number, since it uses less digits than its factorization.

136424728378832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1047591 (or 1047585 counting only the distinct ones).

The product of its digits is 520224768, while the sum is 68.

The spelling of 136424728378832 in words is "one hundred thirty-six trillion, four hundred twenty-four billion, seven hundred twenty-eight million, three hundred seventy-eight thousand, eight hundred thirty-two".