67542849129 has 16 divisors (see below), whose sum is σ = 102927397248. Its totient is φ = 38594053632.

The previous prime is 67542849047. The next prime is 67542849137. The reversal of 67542849129 is 92194824576.

It is not a de Polignac number, because 67542849129 - 2²¹ = 67540751977 is a prime.

It is not an unprimeable number, because it can be changed into a prime (67542849139) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 453049 + ... + 583385.

It is an arithmetic number, because the mean of its divisors is an integer number (6432962328).

Almost surely, 2^67542849129 is an apocalyptic number.

It is an amenable number.

67542849129 is a deficient number, since it is larger than the sum of its proper divisors (35384548119).

67542849129 is a wasteful number, since it uses less digits than its factorization.

67542849129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155024.

The product of its digits is 8709120, while the sum is 57.

The spelling of 67542849129 in words is "sixty-seven billion, five hundred forty-two million, eight hundred forty-nine thousand, one hundred twenty-nine".