7217442013540 has 24 divisors (see below), whose sum is σ = 16534503522432. Its totient is φ = 2624524368480.

The previous prime is 7217442013499. The next prime is 7217442013543. The reversal of 7217442013540 is 453102447127.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 7217442013493 and 7217442013502.

It is not an unprimeable number, because it can be changed into a prime (7217442013543) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16403277084 + ... + 16403277523.

It is an arithmetic number, because the mean of its divisors is an integer number (688937646768).

Almost surely, 2^{7217442013540} is an apocalyptic number.

It is an amenable number.

7217442013540 is an abundant number, since it is smaller than the sum of its proper divisors (9317061508892).

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

7217442013540 is a wasteful number, since it uses less digits than its factorization.

7217442013540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32806554627 (or 32806554625 counting only the distinct ones).

The product of its (nonzero) digits is 188160, while the sum is 40.

The spelling of 7217442013540 in words is "seven trillion, two hundred seventeen billion, four hundred forty-two million, thirteen thousand, five hundred forty".