68947802745 has 16 divisors (see below), whose sum is σ = 110319838272. Its totient is φ = 36771043520.

The previous prime is 68947802713. The next prime is 68947802779. The reversal of 68947802745 is 54720874986.

It is a happy number.

It is not a de Polignac number, because 68947802745 - 2⁵ = 68947802713 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 751210 + ... + 837980.

It is an arithmetic number, because the mean of its divisors is an integer number (6894989892).

Almost surely, 2^68947802745 is an apocalyptic number.

It is an amenable number.

68947802745 is a deficient number, since it is larger than the sum of its proper divisors (41372035527).

68947802745 is a wasteful number, since it uses less digits than its factorization.

68947802745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139752.

The product of its (nonzero) digits is 27095040, while the sum is 60.

The spelling of 68947802745 in words is "sixty-eight billion, nine hundred forty-seven million, eight hundred two thousand, seven hundred forty-five".