421362404365 has 16 divisors (see below), whose sum is σ = 577882649088. Its totient is φ = 288927115776.

The previous prime is 421362404347. The next prime is 421362404387. The reversal of 421362404365 is 563404263124.

It is a cyclic number.

It is not a de Polignac number, because 421362404365 - 2¹⁵ = 421362371597 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1579884 + ... + 1827226.

It is an arithmetic number, because the mean of its divisors is an integer number (36117665568).

Almost surely, 2^421362404365 is an apocalyptic number.

It is an amenable number.

421362404365 is a deficient number, since it is larger than the sum of its proper divisors (156520244723).

421362404365 is a wasteful number, since it uses less digits than its factorization.

421362404365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 296028.

The product of its (nonzero) digits is 414720, while the sum is 40.

Adding to 421362404365 its reverse (563404263124), we get a palindrome (984766667489).

The spelling of 421362404365 in words is "four hundred twenty-one billion, three hundred sixty-two million, four hundred four thousand, three hundred sixty-five".