136423424076838 has 8 divisors (see below), whose sum is σ = 204636370194432. Its totient is φ = 68211300678696.

The previous prime is 136423424076781. The next prime is 136423424076839. The reversal of 136423424076838 is 838670424324631.

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

It is a super-2 number, since 2×136423424076838² (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 (136423424076839) 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, 205265145 + ... + 205928692.

It is an arithmetic number, because the mean of its divisors is an integer number (25579546274304).

Almost surely, 2^{136423424076838} is an apocalyptic number.

136423424076838 is a deficient number, since it is larger than the sum of its proper divisors (68212946117594).

136423424076838 is a wasteful number, since it uses less digits than its factorization.

136423424076838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 411359726.

The product of its (nonzero) digits is 111476736, while the sum is 61.

The spelling of 136423424076838 in words is "one hundred thirty-six trillion, four hundred twenty-three billion, four hundred twenty-four million, seventy-six thousand, eight hundred thirty-eight".