14478849525840 has 160 divisors (see below), whose sum is σ = 51305546115840. Its totient is φ = 3308867407872.

The previous prime is 14478849525839. The next prime is 14478849525841. The reversal of 14478849525840 is 4852594887441.

It is an interprime number because it is at equal distance from previous prime (14478849525839) and next prime (14478849525841).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14478849525841) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8800062 + ... + 10314978.

It is an arithmetic number, because the mean of its divisors is an integer number (320659663224).

Almost surely, 2^{14478849525840} is an apocalyptic number.

14478849525840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 14478849525840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25652773057920).

14478849525840 is an abundant number, since it is smaller than the sum of its proper divisors (36826696590000).

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

14478849525840 is a wasteful number, since it uses less digits than its factorization.

14478849525840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1520629 (or 1520623 counting only the distinct ones).

The product of its (nonzero) digits is 412876800, while the sum is 69.

The spelling of 14478849525840 in words is "fourteen trillion, four hundred seventy-eight billion, eight hundred forty-nine million, five hundred twenty-five thousand, eight hundred forty".