426758477645 has 4 divisors (see below), whose sum is σ = 512110173180. Its totient is φ = 341406782112.

The previous prime is 426758477599. The next prime is 426758477657. The reversal of 426758477645 is 546774857624.

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 101734205764 + 325024271881 = 318958^2 + 570109^2 .

It is a cyclic number.

It is not a de Polignac number, because 426758477645 - 2⁶ = 426758477581 is a prime.

It is a super-3 number, since 3×426758477645³ (a number of 36 digits) contains 333 as substring.

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, 42675847760 + ... + 42675847769.

It is an arithmetic number, because the mean of its divisors is an integer number (128027543295).

Almost surely, 2^426758477645 is an apocalyptic number.

It is an amenable number.

426758477645 is a deficient number, since it is larger than the sum of its proper divisors (85351695535).

426758477645 is an equidigital number, since it uses as much as digits as its factorization.

426758477645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85351695534.

The product of its digits is 316108800, while the sum is 65.

The spelling of 426758477645 in words is "four hundred twenty-six billion, seven hundred fifty-eight million, four hundred seventy-seven thousand, six hundred forty-five".