137652778824 has 128 divisors (see below), whose sum is σ = 395444505600. Its totient is φ = 39490640640.

The previous prime is 137652778819. The next prime is 137652778831. The reversal of 137652778824 is 428877256731.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8052174 + ... + 8069250.

It is an arithmetic number, because the mean of its divisors is an integer number (3089410200).

Almost surely, 2^137652778824 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 137652778824, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (197722252800).

137652778824 is an abundant number, since it is smaller than the sum of its proper divisors (257791726776).

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

137652778824 is a wasteful number, since it uses less digits than its factorization.

137652778824 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18723 (or 18719 counting only the distinct ones).

The product of its digits is 31610880, while the sum is 60.

The spelling of 137652778824 in words is "one hundred thirty-seven billion, six hundred fifty-two million, seven hundred seventy-eight thousand, eight hundred twenty-four".