804651523641 has 32 divisors (see below), whose sum is σ = 1364144812800. Its totient is φ = 459202867200.

The previous prime is 804651523609. The next prime is 804651523651. The reversal of 804651523641 is 146325156408.

804651523641 is a `hidden beast` number, since 8 + 0 + 4 + 65 + 1 + 523 + 64 + 1 = 666.

It is not a de Polignac number, because 804651523641 - 2⁵ = 804651523609 is a prime.

It is not an unprimeable number, because it can be changed into a prime (804651523651) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2622810 + ... + 2913491.

It is an arithmetic number, because the mean of its divisors is an integer number (42629525400).

Almost surely, 2^804651523641 is an apocalyptic number.

It is an amenable number.

804651523641 is a deficient number, since it is larger than the sum of its proper divisors (559493289159).

804651523641 is a wasteful number, since it uses less digits than its factorization.

804651523641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5537086 (or 5537080 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 45.

The spelling of 804651523641 in words is "eight hundred four billion, six hundred fifty-one million, five hundred twenty-three thousand, six hundred forty-one".