68496311524 has 9 divisors (see below), whose sum is σ = 119869461187. Its totient is φ = 34247894044.

The previous prime is 68496311483. The next prime is 68496311539. The reversal of 68496311524 is 42511369486.

The square root of 68496311524 is 261718.

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

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 458007 + ... + 588865.

Almost surely, 2^68496311524 is an apocalyptic number.

68496311524 is the 261718-th square number.

It is an amenable number.

68496311524 is a deficient number, since it is larger than the sum of its proper divisors (51373149663).

68496311524 is an frugal number, since it uses more digits than its factorization.

68496311524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261722 (or 130861 counting only the distinct ones).

The product of its digits is 1244160, while the sum is 49.

Multiplying 68496311524 by its sum of digits (49), we get a square (3356319264676 = 1832026²).

The spelling of 68496311524 in words is "sixty-eight billion, four hundred ninety-six million, three hundred eleven thousand, five hundred twenty-four".