420830783797 has 8 divisors (see below), whose sum is σ = 425575863000. Its totient is φ = 416086074624.

The previous prime is 420830783749. The next prime is 420830783827. The reversal of 420830783797 is 797387038024.

It can be written as a sum of positive squares in 4 ways, for example, as 79113375441 + 341717408356 = 281271^2 + 584566^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 420830783797 - 2⁷ = 420830783669 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 (420830783297) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2650623 + ... + 2804899.

It is an arithmetic number, because the mean of its divisors is an integer number (53196982875).

Almost surely, 2^420830783797 is an apocalyptic number.

It is an amenable number.

420830783797 is a deficient number, since it is larger than the sum of its proper divisors (4745079203).

420830783797 is a wasteful number, since it uses less digits than its factorization.

420830783797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185015.

The product of its (nonzero) digits is 14224896, while the sum is 58.

The spelling of 420830783797 in words is "four hundred twenty billion, eight hundred thirty million, seven hundred eighty-three thousand, seven hundred ninety-seven".