420636350203677 has 6 divisors (see below), whose sum is σ = 607585839183102. Its totient is φ = 280424233469112.

The previous prime is 420636350203661. The next prime is 420636350203733. The reversal of 420636350203677 is 776302053636024.

420636350203677 is a `hidden beast` number, since 4 + 2 + 0 + 6 + 3 + 63 + 502 + 0 + 3 + 6 + 77 = 666.

It can be written as a sum of positive squares in only one way, i.e., 227170338653241 + 193466011550436 = 15072171^2 + 13909206^2 .

It is not a de Polignac number, because 420636350203677 - 2⁴ = 420636350203661 is a prime.

It is a super-2 number, since 2×420636350203677² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420636350203477) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 23368686122418 + ... + 23368686122435.

It is an arithmetic number, because the mean of its divisors is an integer number (101264306530517).

Almost surely, 2^{420636350203677} is an apocalyptic number.

It is an amenable number.

420636350203677 is a deficient number, since it is larger than the sum of its proper divisors (186949488979425).

420636350203677 is a wasteful number, since it uses less digits than its factorization.

420636350203677 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46737372244859 (or 46737372244856 counting only the distinct ones).

The product of its (nonzero) digits is 22861440, while the sum is 54.

The spelling of 420636350203677 in words is "four hundred twenty trillion, six hundred thirty-six billion, three hundred fifty million, two hundred three thousand, six hundred seventy-seven".