68861673494 has 16 divisors (see below), whose sum is σ = 104298908688. Its totient is φ = 34095624192.

The previous prime is 68861673449. The next prime is 68861673563. The reversal of 68861673494 is 49437616886.

It is a Curzon number.

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, 492854 + ... + 616950.

It is an arithmetic number, because the mean of its divisors is an integer number (6518681793).

Almost surely, 2^68861673494 is an apocalyptic number.

68861673494 is a deficient number, since it is larger than the sum of its proper divisors (35437235194).

68861673494 is a wasteful number, since it uses less digits than its factorization.

68861673494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126799.

The product of its digits is 41803776, while the sum is 62.

The spelling of 68861673494 in words is "sixty-eight billion, eight hundred sixty-one million, six hundred seventy-three thousand, four hundred ninety-four".