268045920007 has 4 divisors (see below), whose sum is σ = 273749024736. Its totient is φ = 262342815280.

The previous prime is 268045919989. The next prime is 268045920013. The reversal of 268045920007 is 700029540862.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-268045920007 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (268045920407) 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, 2851552294 + ... + 2851552387.

It is an arithmetic number, because the mean of its divisors is an integer number (68437256184).

Almost surely, 2^268045920007 is an apocalyptic number.

268045920007 is a deficient number, since it is larger than the sum of its proper divisors (5703104729).

268045920007 is an equidigital number, since it uses as much as digits as its factorization.

268045920007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5703104728.

The product of its (nonzero) digits is 241920, while the sum is 43.

The spelling of 268045920007 in words is "two hundred sixty-eight billion, forty-five million, nine hundred twenty thousand, seven".