5459478640 has 320 divisors, whose sum is σ = 16404664320. Its totient is φ = 1640632320.

The previous prime is 5459478637. The next prime is 5459478659. The reversal of 5459478640 is 468749545.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 31557594 + ... + 31557766.

It is an arithmetic number, because the mean of its divisors is an integer number (51264576).

Almost surely, 2^5459478640 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5459478640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8202332160).

5459478640 is an abundant number, since it is smaller than the sum of its proper divisors (10945185680).

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

5459478640 is a wasteful number, since it uses less digits than its factorization.

5459478640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 360 (or 354 counting only the distinct ones).

The product of its (nonzero) digits is 4838400, while the sum is 52.

The square root of 5459478640 is about 73888.2848630282. The cubic root of 5459478640 is about 1760.8284925146.

The spelling of 5459478640 in words is "five billion, four hundred fifty-nine million, four hundred seventy-eight thousand, six hundred forty".