67545108481279 has 32 divisors (see below), whose sum is σ = 85787777295360. Its totient is φ = 52246691280000.

The previous prime is 67545108481261. The next prime is 67545108481303. The reversal of 67545108481279 is 97218480154576.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-67545108481279 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67545108481229) 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, 335847847 + ... + 336048904.

It is an arithmetic number, because the mean of its divisors is an integer number (2680868040480).

Almost surely, 2^{67545108481279} is an apocalyptic number.

67545108481279 is a deficient number, since it is larger than the sum of its proper divisors (18242668814081).

67545108481279 is a wasteful number, since it uses less digits than its factorization.

67545108481279 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 671896831.

The product of its (nonzero) digits is 135475200, while the sum is 67.

The spelling of 67545108481279 in words is "sixty-seven trillion, five hundred forty-five billion, one hundred eight million, four hundred eighty-one thousand, two hundred seventy-nine".