7944487441140 has 48 divisors (see below), whose sum is σ = 22576573276992. Its totient is φ = 2086910132736.

The previous prime is 7944487441103. The next prime is 7944487441147. The reversal of 7944487441140 is 411447844497.

It is a super-2 number, since 2×7944487441140² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7944487441147) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 988116309 + ... + 988124348.

It is an arithmetic number, because the mean of its divisors is an integer number (470345276604).

Almost surely, 2^{7944487441140} is an apocalyptic number.

It is an amenable number.

7944487441140 is an abundant number, since it is smaller than the sum of its proper divisors (14632085835852).

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

7944487441140 is a wasteful number, since it uses less digits than its factorization.

7944487441140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1976240736 (or 1976240734 counting only the distinct ones).

The product of its (nonzero) digits is 14450688, while the sum is 57.

The spelling of 7944487441140 in words is "seven trillion, nine hundred forty-four billion, four hundred eighty-seven million, four hundred forty-one thousand, one hundred forty".