67139274426085 has 32 divisors (see below), whose sum is σ = 84415709274624. Its totient is φ = 51208867776000.

The previous prime is 67139274426017. The next prime is 67139274426109. The reversal of 67139274426085 is 58062447293176.

It is not a de Polignac number, because 67139274426085 - 2⁷ = 67139274425957 is a prime.

It is a super-2 number, since 2×67139274426085² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1097730 + ... + 11639740.

It is an arithmetic number, because the mean of its divisors is an integer number (2637990914832).

It is a 1-persistent number, because it is pandigital, but 2⋅67139274426085 = 134278548852170 is not.

Almost surely, 2^{67139274426085} is an apocalyptic number.

It is an amenable number.

67139274426085 is a deficient number, since it is larger than the sum of its proper divisors (17276434848539).

67139274426085 is a wasteful number, since it uses less digits than its factorization.

67139274426085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10542765.

The product of its (nonzero) digits is 121927680, while the sum is 64.

The spelling of 67139274426085 in words is "sixty-seven trillion, one hundred thirty-nine billion, two hundred seventy-four million, four hundred twenty-six thousand, eighty-five".