421276145757416 has 16 divisors (see below), whose sum is σ = 789896086726500. Its totient is φ = 210637189297024.

The previous prime is 421276145757413. The next prime is 421276145757431. The reversal of 421276145757416 is 614757541672124.

It can be written as a sum of positive squares in 2 ways, for example, as 419494054254916 + 1782091502500 = 20481554^2 + 1334950^2 .

It is a super-2 number, since 2×421276145757416² (a number of 30 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (421276145757413) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 108419195 + ... + 112237578.

Almost surely, 2^{421276145757416} is an apocalyptic number.

It is an amenable number.

421276145757416 is a deficient number, since it is larger than the sum of its proper divisors (368619940969084).

421276145757416 is a wasteful number, since it uses less digits than its factorization.

421276145757416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220895428 (or 220895424 counting only the distinct ones).

The product of its digits is 79027200, while the sum is 62.

The spelling of 421276145757416 in words is "four hundred twenty-one trillion, two hundred seventy-six billion, one hundred forty-five million, seven hundred fifty-seven thousand, four hundred sixteen".