5478287836440 has 128 divisors (see below), whose sum is σ = 17300573049600. Its totient is φ = 1383931169280.

The previous prime is 5478287836397. The next prime is 5478287836471. The reversal of 5478287836440 is 446387828745.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 93772279 + ... + 93830681.

It is an arithmetic number, because the mean of its divisors is an integer number (135160726950).

Almost surely, 2^{5478287836440} is an apocalyptic number.

It is an amenable number.

5478287836440 is an abundant number, since it is smaller than the sum of its proper divisors (11822285213160).

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

5478287836440 is a wasteful number, since it uses less digits than its factorization.

5478287836440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99577 (or 99573 counting only the distinct ones).

The product of its (nonzero) digits is 289013760, while the sum is 66.

The spelling of 5478287836440 in words is "five trillion, four hundred seventy-eight billion, two hundred eighty-seven million, eight hundred thirty-six thousand, four hundred forty".