68609901294720 has 128 divisors (see below), whose sum is σ = 242993400480000. Its totient is φ = 18295973673984.

The previous prime is 68609901294707. The next prime is 68609901294743. The reversal of 68609901294720 is 2749210990686.

68609901294720 is a `hidden beast` number, since 6 + 8 + 60 + 9 + 90 + 12 + 9 + 472 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (128).

It is a super-2 number, since 2×68609901294720² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1985222920 + ... + 1985257479.

It is an arithmetic number, because the mean of its divisors is an integer number (1898385941250).

Almost surely, 2^{68609901294720} is an apocalyptic number.

68609901294720 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

68609901294720 is an abundant number, since it is smaller than the sum of its proper divisors (174383499185280).

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

68609901294720 is a wasteful number, since it uses less digits than its factorization.

68609901294720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3970480427 (or 3970480409 counting only the distinct ones).

The product of its (nonzero) digits is 23514624, while the sum is 63.

The spelling of 68609901294720 in words is "sixty-eight trillion, six hundred nine billion, nine hundred one million, two hundred ninety-four thousand, seven hundred twenty".