1451801568 has 48 divisors (see below), whose sum is σ = 4355406720. Its totient is φ = 414800256.

The previous prime is 1451801563. The next prime is 1451801591. The reversal of 1451801568 is 8651081541.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1451801563) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1079538 + ... + 1080881.

It is an arithmetic number, because the mean of its divisors is an integer number (90737640).

Almost surely, 2^1451801568 is an apocalyptic number.

It is an amenable number.

1451801568 is an abundant number, since it is smaller than the sum of its proper divisors (2903605152).

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

1451801568 is a wasteful number, since it uses less digits than its factorization.

1451801568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2160439 (or 2160431 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 39.

The square root of 1451801568 is about 38102.5139328103. The cubic root of 1451801568 is about 1132.3197621640.

The spelling of 1451801568 in words is "one billion, four hundred fifty-one million, eight hundred one thousand, five hundred sixty-eight".