136721400432 has 40 divisors (see below), whose sum is σ = 356693963280. Its totient is φ = 45122572800.

The previous prime is 136721400427. The next prime is 136721400443. The reversal of 136721400432 is 234004127631.

136721400432 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 136721400393 and 136721400402.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14095957 + ... + 14105652.

It is an arithmetic number, because the mean of its divisors is an integer number (8917349082).

Almost surely, 2^136721400432 is an apocalyptic number.

136721400432 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

136721400432 is an abundant number, since it is smaller than the sum of its proper divisors (219972562848).

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

136721400432 is a wasteful number, since it uses less digits than its factorization.

136721400432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28201721 (or 28201715 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 33.

The spelling of 136721400432 in words is "one hundred thirty-six billion, seven hundred twenty-one million, four hundred thousand, four hundred thirty-two".