137781630329 has 32 divisors (see below), whose sum is σ = 168182784000. Its totient is φ = 110368258560.

The previous prime is 137781630317. The next prime is 137781630331. The reversal of 137781630329 is 923036187731.

It is a de Polignac number, because none of the positive numbers 2^k-137781630329 is a prime.

It is a super-2 number, since 2×137781630329² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (137781630929) by changing a digit.

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, 991847 + ... + 1122195.

It is an arithmetic number, because the mean of its divisors is an integer number (5255712000).

Almost surely, 2^137781630329 is an apocalyptic number.

It is an amenable number.

137781630329 is a deficient number, since it is larger than the sum of its proper divisors (30401153671).

137781630329 is a wasteful number, since it uses less digits than its factorization.

137781630329 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130553.

The product of its (nonzero) digits is 1143072, while the sum is 50.

The spelling of 137781630329 in words is "one hundred thirty-seven billion, seven hundred eighty-one million, six hundred thirty thousand, three hundred twenty-nine".