68087782874 has 8 divisors (see below), whose sum is σ = 102132782388. Its totient is φ = 34043522080.

The previous prime is 68087782831. The next prime is 68087782877. The reversal of 68087782874 is 47828778086.

It can be written as a sum of positive squares in 2 ways, for example, as 52942788649 + 15144994225 = 230093^2 + 123065^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 68087782874.

It is not an unprimeable number, because it can be changed into a prime (68087782877) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 257264 + ... + 449844.

Almost surely, 2^68087782874 is an apocalyptic number.

68087782874 is a deficient number, since it is larger than the sum of its proper divisors (34044999514).

68087782874 is a wasteful number, since it uses less digits than its factorization.

68087782874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 369360.

The product of its (nonzero) digits is 67436544, while the sum is 65.

The spelling of 68087782874 in words is "sixty-eight billion, eighty-seven million, seven hundred eighty-two thousand, eight hundred seventy-four".