1478573857956 has 96 divisors (see below), whose sum is σ = 3736081214208. Its totient is φ = 452418785280.

The previous prime is 1478573857939. The next prime is 1478573857987. The reversal of 1478573857956 is 6597583758741.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22015980 + ... + 22083036.

It is an arithmetic number, because the mean of its divisors is an integer number (38917512648).

Almost surely, 2^{1478573857956} 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 1478573857956, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1868040607104).

1478573857956 is an abundant number, since it is smaller than the sum of its proper divisors (2257507356252).

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

1478573857956 is a wasteful number, since it uses less digits than its factorization.

1478573857956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67861 (or 67859 counting only the distinct ones).

The product of its digits is 1778112000, while the sum is 75.

The spelling of 1478573857956 in words is "one trillion, four hundred seventy-eight billion, five hundred seventy-three million, eight hundred fifty-seven thousand, nine hundred fifty-six".