68147348081472 has 84 divisors (see below), whose sum is σ = 213089529721536. Its totient is φ = 20650711537920.

The previous prime is 68147348081401. The next prime is 68147348081521. The reversal of 68147348081472 is 27418084374186.

68147348081472 is a `hidden beast` number, since 6 + 8 + 1 + 4 + 7 + 3 + 4 + 80 + 81 + 472 = 666.

It is a super-2 number, since 2×68147348081472² (a number of 28 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (63) 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 11 ways as a sum of consecutive naturals, for example, 5377783128 + ... + 5377795799.

Almost surely, 2^{68147348081472} is an apocalyptic number.

It is an amenable number.

68147348081472 is an abundant number, since it is smaller than the sum of its proper divisors (144942181640064).

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

68147348081472 is a wasteful number, since it uses less digits than its factorization.

68147348081472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10755578956 (or 10755578943 counting only the distinct ones).

The product of its (nonzero) digits is 57802752, while the sum is 63.

The spelling of 68147348081472 in words is "sixty-eight trillion, one hundred forty-seven billion, three hundred forty-eight million, eighty-one thousand, four hundred seventy-two".