7721068242608 has 40 divisors (see below), whose sum is σ = 17103655668000. Its totient is φ = 3307673525760.

The previous prime is 7721068242539. The next prime is 7721068242617. The reversal of 7721068242608 is 8062428601277.

It is a super-2 number, since 2×7721068242608² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 7721068242608.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13847483 + ... + 14394266.

It is an arithmetic number, because the mean of its divisors is an integer number (427591391700).

Almost surely, 2^{7721068242608} is an apocalyptic number.

It is an amenable number.

7721068242608 is an abundant number, since it is smaller than the sum of its proper divisors (9382587425392).

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

7721068242608 is a wasteful number, since it uses less digits than its factorization.

7721068242608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28244205 (or 28244199 counting only the distinct ones).

The product of its (nonzero) digits is 3612672, while the sum is 53.

The spelling of 7721068242608 in words is "seven trillion, seven hundred twenty-one billion, sixty-eight million, two hundred forty-two thousand, six hundred eight".