136726039728 has 60 divisors (see below), whose sum is σ = 383158311120. Its totient is φ = 45513971328.

The previous prime is 136726039711. The next prime is 136726039781. The reversal of 136726039728 is 827930627631.

136726039728 is a `hidden beast` number, since 1 + 3 + 6 + 7 + 2 + 603 + 9 + 7 + 28 = 666.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

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 11 ways as a sum of consecutive naturals, for example, 531963 + ... + 745946.

It is an arithmetic number, because the mean of its divisors is an integer number (6385971852).

Almost surely, 2^136726039728 is an apocalyptic number.

136726039728 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

136726039728 is an abundant number, since it is smaller than the sum of its proper divisors (246432271392).

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

136726039728 is a wasteful number, since it uses less digits than its factorization.

136726039728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1278666 (or 1278657 counting only the distinct ones).

The product of its (nonzero) digits is 4572288, while the sum is 54.

The spelling of 136726039728 in words is "one hundred thirty-six billion, seven hundred twenty-six million, thirty-nine thousand, seven hundred twenty-eight".