67712512543755 has 32 divisors (see below), whose sum is σ = 109016411486976. Its totient is φ = 35887923897984.

The previous prime is 67712512543751. The next prime is 67712512543757. The reversal of 67712512543755 is 55734521521776.

It is not a de Polignac number, because 67712512543755 - 2² = 67712512543751 is a prime.

It is not an unprimeable number, because it can be changed into a prime (67712512543751) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21309469 + ... + 24280001.

It is an arithmetic number, because the mean of its divisors is an integer number (3406762858968).

Almost surely, 2^{67712512543755} is an apocalyptic number.

67712512543755 is a deficient number, since it is larger than the sum of its proper divisors (41303898943221).

67712512543755 is a wasteful number, since it uses less digits than its factorization.

67712512543755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2980027.

The product of its digits is 61740000, while the sum is 60.

The spelling of 67712512543755 in words is "sixty-seven trillion, seven hundred twelve billion, five hundred twelve million, five hundred forty-three thousand, seven hundred fifty-five".