421415425425146 has 8 divisors (see below), whose sum is σ = 632139309636660. Its totient is φ = 210702322212928.

The previous prime is 421415425425133. The next prime is 421415425425227. The reversal of 421415425425146 is 641524524514124.

It can be written as a sum of positive squares in 2 ways, for example, as 391850378534521 + 29565046890625 = 19795211^2 + 5437375^2 .

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 421415425425094 and 421415425425103.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2695152101 + ... + 2695308456.

Almost surely, 2^{421415425425146} is an apocalyptic number.

421415425425146 is a deficient number, since it is larger than the sum of its proper divisors (210723884211514).

421415425425146 is a wasteful number, since it uses less digits than its factorization.

421415425425146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5390499648.

The product of its digits is 6144000, while the sum is 50.

The spelling of 421415425425146 in words is "four hundred twenty-one trillion, four hundred fifteen billion, four hundred twenty-five million, four hundred twenty-five thousand, one hundred forty-six".