136739828640 has 48 divisors (see below), whose sum is σ = 430730461728. Its totient is φ = 36463954176.

The previous prime is 136739828633. The next prime is 136739828657. The reversal of 136739828640 is 46828937631.

It is a tau number, because it is divible by the number of its divisors (48).

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, 142436842 + ... + 142437801.

It is an arithmetic number, because the mean of its divisors is an integer number (8973551286).

Almost surely, 2^136739828640 is an apocalyptic number.

136739828640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

136739828640 is an abundant number, since it is smaller than the sum of its proper divisors (293990633088).

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

136739828640 is a wasteful number, since it uses less digits than its factorization.

136739828640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284874661 (or 284874653 counting only the distinct ones).

The product of its (nonzero) digits is 10450944, while the sum is 57.

The spelling of 136739828640 in words is "one hundred thirty-six billion, seven hundred thirty-nine million, eight hundred twenty-eight thousand, six hundred forty".