68302828294978 has 8 divisors (see below), whose sum is σ = 102781572291468. Its totient is φ = 34042304197824.

The previous prime is 68302828294949. The next prime is 68302828294999. The reversal of 68302828294978 is 87949282820386.

It can be written as a sum of positive squares in 2 ways, for example, as 63036184258089 + 5266644036889 = 7939533^2 + 2294917^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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, 54554974051 + ... + 54554975302.

Almost surely, 2^{68302828294978} is an apocalyptic number.

68302828294978 is a deficient number, since it is larger than the sum of its proper divisors (34478743996490).

68302828294978 is a wasteful number, since it uses less digits than its factorization.

68302828294978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109109949668.

The product of its (nonzero) digits is 1337720832, while the sum is 76.

The spelling of 68302828294978 in words is "sixty-eight trillion, three hundred two billion, eight hundred twenty-eight million, two hundred ninety-four thousand, nine hundred seventy-eight".