67137875145 has 24 divisors (see below), whose sum is σ = 126951619392. Its totient is φ = 32551696800.

The previous prime is 67137875111. The next prime is 67137875149. The reversal of 67137875145 is 54157873176.

67137875145 is a `hidden beast` number, since 67 + 1 + 378 + 75 + 145 = 666.

It is not a de Polignac number, because 67137875145 - 2⁷ = 67137875017 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 67137875091 and 67137875100.

It is not an unprimeable number, because it can be changed into a prime (67137875149) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 67815541 + ... + 67816530.

It is an arithmetic number, because the mean of its divisors is an integer number (5289650808).

Almost surely, 2^67137875145 is an apocalyptic number.

It is an amenable number.

67137875145 is a deficient number, since it is larger than the sum of its proper divisors (59813744247).

67137875145 is a wasteful number, since it uses less digits than its factorization.

67137875145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135632093 (or 135632090 counting only the distinct ones).

The product of its digits is 4939200, while the sum is 54.

The spelling of 67137875145 in words is "sixty-seven billion, one hundred thirty-seven million, eight hundred seventy-five thousand, one hundred forty-five".