68774400001 has 4 divisors (see below), whose sum is σ = 69483414532. Its totient is φ = 68065385472.

The previous prime is 68774399983. The next prime is 68774400011. The reversal of 68774400001 is 10000447786.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 15158534400 + 53615865601 = 123120^2 + 231551^2 .

It is a cyclic number.

It is not a de Polignac number, because 68774400001 - 2⁹ = 68774399489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68774400011) 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, 354507120 + ... + 354507313.

It is an arithmetic number, because the mean of its divisors is an integer number (17370853633).

Almost surely, 2^68774400001 is an apocalyptic number.

It is an amenable number.

68774400001 is a deficient number, since it is larger than the sum of its proper divisors (709014531).

68774400001 is an equidigital number, since it uses as much as digits as its factorization.

68774400001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 709014530.

The product of its (nonzero) digits is 37632, while the sum is 37.

Adding to 68774400001 its reverse (10000447786), we get a palindrome (78774847787).

The spelling of 68774400001 in words is "sixty-eight billion, seven hundred seventy-four million, four hundred thousand, one".