421400412322515 has 48 divisors (see below), whose sum is σ = 741111842255616. Its totient is φ = 221462751182400.

The previous prime is 421400412322489. The next prime is 421400412322531. The reversal of 421400412322515 is 515223214004124.

421400412322515 is a `hidden beast` number, since 4 + 2 + 1 + 4 + 0 + 0 + 412 + 3 + 225 + 15 = 666.

It is not a de Polignac number, because 421400412322515 - 2⁷ = 421400412322387 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 421400412322515.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 29357301 + ... + 41287430.

It is an arithmetic number, because the mean of its divisors is an integer number (15439830046992).

Almost surely, 2^{421400412322515} is an apocalyptic number.

421400412322515 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

421400412322515 is a deficient number, since it is larger than the sum of its proper divisors (319711429933101).

421400412322515 is a wasteful number, since it uses less digits than its factorization.

421400412322515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70646680 (or 70646677 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 36.

Adding to 421400412322515 its reverse (515223214004124), we get a palindrome (936623626326639).

The spelling of 421400412322515 in words is "four hundred twenty-one trillion, four hundred billion, four hundred twelve million, three hundred twenty-two thousand, five hundred fifteen".