137509642975 has 6 divisors (see below), whose sum is σ = 170511957320. Its totient is φ = 110007714360.

The previous prime is 137509642943. The next prime is 137509642979. The reversal of 137509642975 is 579246905731.

It is a happy number.

It is not a de Polignac number, because 137509642975 - 2⁵ = 137509642943 is a prime.

It is a super-2 number, since 2×137509642975² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (137509642979) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2750192835 + ... + 2750192884.

Almost surely, 2^137509642975 is an apocalyptic number.

137509642975 is a deficient number, since it is larger than the sum of its proper divisors (33002314345).

137509642975 is an equidigital number, since it uses as much as digits as its factorization.

137509642975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5500385729 (or 5500385724 counting only the distinct ones).

The product of its (nonzero) digits is 14288400, while the sum is 58.

The spelling of 137509642975 in words is "one hundred thirty-seven billion, five hundred nine million, six hundred forty-two thousand, nine hundred seventy-five".