4081647456 has 96 divisors (see below), whose sum is σ = 12315391200. Its totient is φ = 1313625600.

The previous prime is 4081647403. The next prime is 4081647473. The reversal of 4081647456 is 6547461804.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

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, 56395 + ... + 106506.

It is an arithmetic number, because the mean of its divisors is an integer number (128285325).

Almost surely, 2^4081647456 is an apocalyptic number.

It is an amenable number.

4081647456 is an abundant number, since it is smaller than the sum of its proper divisors (8233743744).

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

4081647456 is a wasteful number, since it uses less digits than its factorization.

4081647456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162949 (or 162935 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 45.

The square root of 4081647456 is about 63887.7723512097. The cubic root of 4081647456 is about 1598.1289921004.

The spelling of 4081647456 in words is "four billion, eighty-one million, six hundred forty-seven thousand, four hundred fifty-six".