68495387125636 has 81 divisors (see below), whose sum is σ = 128304460202373. Its totient is φ = 31993117621920.

The previous prime is 68495387125591. The next prime is 68495387125651. The reversal of 68495387125636 is 63652178359486.

The square root of 68495387125636 is 8276194.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 35917319527236 + 32578067598400 = 5993106^2 + 5707720^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 14880594511 + ... + 14880599113.

Almost surely, 2^{68495387125636} is an apocalyptic number.

68495387125636 is the 8276194-th square number.

It is an amenable number.

68495387125636 is a deficient number, since it is larger than the sum of its proper divisors (59809073076737).

68495387125636 is an frugal number, since it uses more digits than its factorization.

68495387125636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9330 (or 4665 counting only the distinct ones).

The product of its digits is 1567641600, while the sum is 73.

The spelling of 68495387125636 in words is "sixty-eight trillion, four hundred ninety-five billion, three hundred eighty-seven million, one hundred twenty-five thousand, six hundred thirty-six".