68140900460752 has 60 divisors (see below), whose sum is σ = 156475463133636. Its totient is φ = 28652238451200.

The previous prime is 68140900460669. The next prime is 68140900460771. The reversal of 68140900460752 is 25706400904186.

68140900460752 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 61056658143376 + 7084242317376 = 7813876^2 + 2661624^2 .

It is a super-2 number, since 2×68140900460752² (a number of 28 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 68140900460752.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 819905749 + ... + 819988852.

Almost surely, 2^{68140900460752} is an apocalyptic number.

It is an amenable number.

68140900460752 is an abundant number, since it is smaller than the sum of its proper divisors (88334562672884).

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

68140900460752 is a wasteful number, since it uses less digits than its factorization.

68140900460752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1639894676 (or 1639894663 counting only the distinct ones).

The product of its (nonzero) digits is 2903040, while the sum is 52.

The spelling of 68140900460752 in words is "sixty-eight trillion, one hundred forty billion, nine hundred million, four hundred sixty thousand, seven hundred fifty-two".