68138210524 has 12 divisors (see below), whose sum is σ = 119736649648. Its totient is φ = 33927739200.

The previous prime is 68138210479. The next prime is 68138210573. The reversal of 68138210524 is 42501283186.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35340432 + ... + 35342359.

Almost surely, 2^68138210524 is an apocalyptic number.

It is an amenable number.

68138210524 is a deficient number, since it is larger than the sum of its proper divisors (51598439124).

68138210524 is a wasteful number, since it uses less digits than its factorization.

68138210524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70683036 (or 70683034 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 40.

The spelling of 68138210524 in words is "sixty-eight billion, one hundred thirty-eight million, two hundred ten thousand, five hundred twenty-four".