1478409973488 has 240 divisors, whose sum is σ = 4949465952000. Its totient is φ = 421286044032.

The previous prime is 1478409973471. The next prime is 1478409973489. The reversal of 1478409973488 is 8843799048741.

1478409973488 is a `hidden beast` number, since 1 + 4 + 78 + 4 + 0 + 9 + 9 + 73 + 488 = 666.

It is a super-2 number, since 2×1478409973488² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1478409973489) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7930533 + ... + 8114811.

It is an arithmetic number, because the mean of its divisors is an integer number (20622774800).

Almost surely, 2^{1478409973488} is an apocalyptic number.

1478409973488 is a gapful number since it is divisible by the number (18) 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 1478409973488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2474732976000).

1478409973488 is an abundant number, since it is smaller than the sum of its proper divisors (3471055978512).

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

1478409973488 is a wasteful number, since it uses less digits than its factorization.

1478409973488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184689 (or 184670 counting only the distinct ones).

The product of its (nonzero) digits is 390168576, while the sum is 72.

The spelling of 1478409973488 in words is "one trillion, four hundred seventy-eight billion, four hundred nine million, nine hundred seventy-three thousand, four hundred eighty-eight".