7446220612540 has 48 divisors (see below), whose sum is σ = 15706883005632. Its totient is φ = 2965193662976.

The previous prime is 7446220612517. The next prime is 7446220612651. The reversal of 7446220612540 is 452160226447.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27485022 + ... + 27754618.

It is an arithmetic number, because the mean of its divisors is an integer number (327226729284).

Almost surely, 2^{7446220612540} is an apocalyptic number.

It is an amenable number.

7446220612540 is an abundant number, since it is smaller than the sum of its proper divisors (8260662393092).

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

7446220612540 is a wasteful number, since it uses less digits than its factorization.

7446220612540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275766 (or 275764 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 43.

Adding to 7446220612540 its reverse (452160226447), we get a palindrome (7898380838987).

The spelling of 7446220612540 in words is "seven trillion, four hundred forty-six billion, two hundred twenty million, six hundred twelve thousand, five hundred forty".