899563467840 has 56 divisors (see below), whose sum is σ = 2856114013440. Its totient is φ = 239883591168.

The previous prime is 899563467827. The next prime is 899563467841. The reversal of 899563467840 is 48764365998.

It is not an unprimeable number, because it can be changed into a prime (899563467841) 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, 468521680 + ... + 468523599.

Almost surely, 2^899563467840 is an apocalyptic number.

899563467840 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

899563467840 is an abundant number, since it is smaller than the sum of its proper divisors (1956550545600).

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

899563467840 is a wasteful number, since it uses less digits than its factorization.

899563467840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 937045299 (or 937045289 counting only the distinct ones).

The product of its (nonzero) digits is 313528320, while the sum is 69.

The spelling of 899563467840 in words is "eight hundred ninety-nine billion, five hundred sixty-three million, four hundred sixty-seven thousand, eight hundred forty".