67426309858516 has 12 divisors (see below), whose sum is σ = 134852619717088. Its totient is φ = 28896989939352.

The previous prime is 67426309858489. The next prime is 67426309858541. The reversal of 67426309858516 is 61585890362476.

It is a happy number.

67426309858516 is an admirable number.

It is a super-2 number, since 2×67426309858516² (a number of 28 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (70) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1204041247446 + ... + 1204041247501.

It is a 2-persistent number, because it is pandigital, and so is 2⋅67426309858516 = 134852619717032, but 3⋅67426309858516 = 202278929575548 is not.

Almost surely, 2^{67426309858516} is an apocalyptic number.

It is an amenable number.

67426309858516 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

67426309858516 is a wasteful number, since it uses less digits than its factorization.

67426309858516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2408082494958 (or 2408082494956 counting only the distinct ones).

The product of its (nonzero) digits is 522547200, while the sum is 70.

The spelling of 67426309858516 in words is "sixty-seven trillion, four hundred twenty-six billion, three hundred nine million, eight hundred fifty-eight thousand, five hundred sixteen".