1347473664 has 144 divisors (see below), whose sum is σ = 4002969600. Its totient is φ = 447105024.

The previous prime is 1347473629. The next prime is 1347473681. The reversal of 1347473664 is 4663747431.

It is a tau number, because it is divible by the number of its divisors (144).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2647042 + ... + 2647550.

It is an arithmetic number, because the mean of its divisors is an integer number (27798400).

Almost surely, 2^1347473664 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 1347473664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2001484800).

1347473664 is an abundant number, since it is smaller than the sum of its proper divisors (2655495936).

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

1347473664 is an equidigital number, since it uses as much as digits as its factorization.

1347473664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 917 (or 897 counting only the distinct ones).

The product of its digits is 1016064, while the sum is 45.

The square root of 1347473664 is about 36707.9509643347. The cubic root of 1347473664 is about 1104.5196041781.

The spelling of 1347473664 in words is "one billion, three hundred forty-seven million, four hundred seventy-three thousand, six hundred sixty-four".