426455072203645 has 4 divisors (see below), whose sum is σ = 511746086644380. Its totient is φ = 341164057762912.

The previous prime is 426455072203561. The next prime is 426455072203669. The reversal of 426455072203645 is 546302270554624.

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 97658884827001 + 328796187376644 = 9882251^2 + 18132738^2 .

It is a cyclic number.

It is not a de Polignac number, because 426455072203645 - 2¹¹ = 426455072201597 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42645507220360 + ... + 42645507220369.

It is an arithmetic number, because the mean of its divisors is an integer number (127936521661095).

Almost surely, 2^{426455072203645} is an apocalyptic number.

It is an amenable number.

426455072203645 is a deficient number, since it is larger than the sum of its proper divisors (85291014440735).

426455072203645 is an equidigital number, since it uses as much as digits as its factorization.

426455072203645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85291014440734.

The product of its (nonzero) digits is 48384000, while the sum is 55.

The spelling of 426455072203645 in words is "four hundred twenty-six trillion, four hundred fifty-five billion, seventy-two million, two hundred three thousand, six hundred forty-five".