136426375040 has 128 divisors (see below), whose sum is σ = 342145944000. Its totient is φ = 51946209280.

The previous prime is 136426375027. The next prime is 136426375061. The reversal of 136426375040 is 40573624631.

It is a tau number, because it is divible by the number of its divisors (128).

It is a super-2 number, since 2×136426375040² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1265996 + ... + 1369524.

Almost surely, 2^136426375040 is an apocalyptic number.

136426375040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 136426375040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (171072972000).

136426375040 is an abundant number, since it is smaller than the sum of its proper divisors (205719568960).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

136426375040 is a wasteful number, since it uses less digits than its factorization.

136426375040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103648 (or 103636 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 41.

Adding to 136426375040 its reverse (40573624631), we get a palindrome (176999999671).

The spelling of 136426375040 in words is "one hundred thirty-six billion, four hundred twenty-six million, three hundred seventy-five thousand, forty".