135842403457 has 8 divisors (see below), whose sum is σ = 136961273600. Its totient is φ = 134727896160.

The previous prime is 135842403451. The next prime is 135842403479. The reversal of 135842403457 is 754304248531.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-135842403457 is a prime.

It is a super-7 number, since 7×135842403457⁷ (a number of 79 digits) contains 7777777 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135842403451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1028169 + ... + 1152742.

It is an arithmetic number, because the mean of its divisors is an integer number (17120159200).

Almost surely, 2^135842403457 is an apocalyptic number.

It is an amenable number.

135842403457 is a deficient number, since it is larger than the sum of its proper divisors (1118870143).

135842403457 is a wasteful number, since it uses less digits than its factorization.

135842403457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2181423.

The product of its (nonzero) digits is 1612800, while the sum is 46.

The spelling of 135842403457 in words is "one hundred thirty-five billion, eight hundred forty-two million, four hundred three thousand, four hundred fifty-seven".