68520400040348 has 24 divisors (see below), whose sum is σ = 121854863071872. Its totient is φ = 33709150974464.

The previous prime is 68520400040347. The next prime is 68520400040353. The reversal of 68520400040348 is 84304000402586.

68520400040348 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×68520400040348² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 68520400040299 and 68520400040308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68520400040347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 553200140 + ... + 553323987.

It is an arithmetic number, because the mean of its divisors is an integer number (5077285961328).

Almost surely, 2^{68520400040348} is an apocalyptic number.

It is an amenable number.

68520400040348 is a deficient number, since it is larger than the sum of its proper divisors (53334463031524).

68520400040348 is a wasteful number, since it uses less digits than its factorization.

68520400040348 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1106524381 (or 1106524379 counting only the distinct ones).

The product of its (nonzero) digits is 737280, while the sum is 44.

The spelling of 68520400040348 in words is "sixty-eight trillion, five hundred twenty billion, four hundred million, forty thousand, three hundred forty-eight".