4221413671540 has 96 divisors (see below), whose sum is σ = 9637692180480. Its totient is φ = 1543855666176.

The previous prime is 4221413671511. The next prime is 4221413671547. The reversal of 4221413671540 is 451763141224.

It is a junction number, because it is equal to n+sod(n) for n = 4221413671493 and 4221413671502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4221413671547) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 298473709 + ... + 298487851.

It is an arithmetic number, because the mean of its divisors is an integer number (100392626880).

Almost surely, 2^{4221413671540} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4221413671540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4818846090240).

4221413671540 is an abundant number, since it is smaller than the sum of its proper divisors (5416278508940).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4221413671540 is a wasteful number, since it uses less digits than its factorization.

4221413671540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25001 (or 24999 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 40.

The spelling of 4221413671540 in words is "four trillion, two hundred twenty-one billion, four hundred thirteen million, six hundred seventy-one thousand, five hundred forty".