67529600138 has 128 divisors (see below), whose sum is σ = 143820472320. Its totient is φ = 22928832000.

The previous prime is 67529600113. The next prime is 67529600167. The reversal of 67529600138 is 83100692576.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 67529600092 and 67529600101.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2531273 + ... + 2557811.

It is an arithmetic number, because the mean of its divisors is an integer number (1123597440).

Almost surely, 2^67529600138 is an apocalyptic number.

67529600138 is an abundant number, since it is smaller than the sum of its proper divisors (76290872182).

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

67529600138 is a wasteful number, since it uses less digits than its factorization.

67529600138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26644.

The product of its (nonzero) digits is 544320, while the sum is 47.

The spelling of 67529600138 in words is "sixty-seven billion, five hundred twenty-nine million, six hundred thousand, one hundred thirty-eight".