68787459474 has 16 divisors (see below), whose sum is σ = 140930405280. Its totient is φ = 22369905440.

The previous prime is 68787459443. The next prime is 68787459563. The reversal of 68787459474 is 47495478786.

It is a junction number, because it is equal to n+sod(n) for n = 68787459399 and 68787459408.

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, 139811664 + ... + 139812155.

It is an arithmetic number, because the mean of its divisors is an integer number (8808150330).

Almost surely, 2^68787459474 is an apocalyptic number.

68787459474 is an abundant number, since it is smaller than the sum of its proper divisors (72142945806).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68787459474 is a wasteful number, since it uses less digits than its factorization.

68787459474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 279623865.

The product of its digits is 379330560, while the sum is 69.

The spelling of 68787459474 in words is "sixty-eight billion, seven hundred eighty-seven million, four hundred fifty-nine thousand, four hundred seventy-four".