137519705682 has 18 divisors (see below), whose sum is σ = 297962771223. Its totient is φ = 45839377452.

The previous prime is 137519705623. The next prime is 137519705689. The reversal of 137519705682 is 286507915731.

137519705682 is a `hidden beast` number, since 1 + 3 + 7 + 5 + 1 + 9 + 70 + 568 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 68759852841 + 68759852841 = 262221^2 + 262221^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=262221.

It is not an unprimeable number, because it can be changed into a prime (137519705689) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1529623 + ... + 1617029.

Almost surely, 2^137519705682 is an apocalyptic number.

137519705682 is an abundant number, since it is smaller than the sum of its proper divisors (160443065541).

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

137519705682 is an frugal number, since it uses more digits than its factorization.

137519705682 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174822 (or 87412 counting only the distinct ones).

The product of its (nonzero) digits is 3175200, while the sum is 54.

The spelling of 137519705682 in words is "one hundred thirty-seven billion, five hundred nineteen million, seven hundred five thousand, six hundred eighty-two".