7215454004140 has 24 divisors (see below), whose sum is σ = 15949950957360. Its totient is φ = 2734277306688.

The previous prime is 7215454004137. The next prime is 7215454004219. The reversal of 7215454004140 is 414004545127.

It is a self number, because there is not a number n which added to its sum of digits gives 7215454004140.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9494018047 + ... + 9494018806.

It is an arithmetic number, because the mean of its divisors is an integer number (664581289890).

Almost surely, 2^{7215454004140} is an apocalyptic number.

It is an amenable number.

7215454004140 is an abundant number, since it is smaller than the sum of its proper divisors (8734496953220).

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

7215454004140 is a wasteful number, since it uses less digits than its factorization.

7215454004140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18988036881 (or 18988036879 counting only the distinct ones).

The product of its (nonzero) digits is 89600, while the sum is 37.

Adding to 7215454004140 its reverse (414004545127), we get a palindrome (7629458549267).

The spelling of 7215454004140 in words is "seven trillion, two hundred fifteen billion, four hundred fifty-four million, four thousand, one hundred forty".