415451371648 has 64 divisors (see below), whose sum is σ = 842018976000. Its totient is φ = 204123919360.

The previous prime is 415451371639. The next prime is 415451371669. The reversal of 415451371648 is 846173154514.

It is a tau number, because it is divible by the number of its divisors (64).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21959313 + ... + 21978223.

It is an arithmetic number, because the mean of its divisors is an integer number (13156546500).

Almost surely, 2^415451371648 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 415451371648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (421009488000).

415451371648 is an abundant number, since it is smaller than the sum of its proper divisors (426567604352).

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

415451371648 is a wasteful number, since it uses less digits than its factorization.

415451371648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21893 (or 21881 counting only the distinct ones).

The product of its digits is 1612800, while the sum is 49.

The spelling of 415451371648 in words is "four hundred fifteen billion, four hundred fifty-one million, three hundred seventy-one thousand, six hundred forty-eight".