68351786103632 has 40 divisors (see below), whose sum is σ = 133747364163240. Its totient is φ = 33836988416000.

The previous prime is 68351786103611. The next prime is 68351786103647. The reversal of 68351786103632 is 23630168715386.

It can be written as a sum of positive squares in 4 ways, for example, as 14436777779776 + 53915008323856 = 3799576^2 + 7342684^2 .

It is a congruent number.

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, 18667619 + ... + 22026882.

It is an arithmetic number, because the mean of its divisors is an integer number (3343684104081).

Almost surely, 2^{68351786103632} is an apocalyptic number.

It is an amenable number.

68351786103632 is a deficient number, since it is larger than the sum of its proper divisors (65395578059608).

68351786103632 is a wasteful number, since it uses less digits than its factorization.

68351786103632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40695551 (or 40695545 counting only the distinct ones).

The product of its (nonzero) digits is 26127360, while the sum is 59.

The spelling of 68351786103632 in words is "sixty-eight trillion, three hundred fifty-one billion, seven hundred eighty-six million, one hundred three thousand, six hundred thirty-two".