899752822640 has 160 divisors (see below), whose sum is σ = 2400285229056. Its totient is φ = 307261486080.

The previous prime is 899752822589. The next prime is 899752822673. The reversal of 899752822640 is 46228257998.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 185093810 + ... + 185098670.

Almost surely, 2^899752822640 is an apocalyptic number.

899752822640 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 899752822640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1200142614528).

899752822640 is an abundant number, since it is smaller than the sum of its proper divisors (1500532406416).

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

899752822640 is a wasteful number, since it uses less digits than its factorization.

899752822640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6127 (or 6121 counting only the distinct ones).

The product of its (nonzero) digits is 34836480, while the sum is 62.

The spelling of 899752822640 in words is "eight hundred ninety-nine billion, seven hundred fifty-two million, eight hundred twenty-two thousand, six hundred forty".