137745731788 has 12 divisors (see below), whose sum is σ = 275491463632. Its totient is φ = 59033885040.

The previous prime is 137745731729. The next prime is 137745731813. The reversal of 137745731788 is 887137547731.

137745731788 is an admirable number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2459745183 + ... + 2459745238.

Almost surely, 2^137745731788 is an apocalyptic number.

It is an amenable number.

137745731788 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

137745731788 is a wasteful number, since it uses less digits than its factorization.

137745731788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4919490432 (or 4919490430 counting only the distinct ones).

The product of its digits is 27659520, while the sum is 61.

The spelling of 137745731788 in words is "one hundred thirty-seven billion, seven hundred forty-five million, seven hundred thirty-one thousand, seven hundred eighty-eight".