899059744440 has 1152 divisors, whose sum is σ = 3759245380800. Its totient is φ = 183073996800.

The previous prime is 899059744433. The next prime is 899059744447. The reversal of 899059744440 is 44447950998.

899059744440 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (899059744433) and next prime (899059744447).

It is a super-2 number, since 2×899059744440² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (899059744447) by changing a digit.

It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 841028226 + ... + 841029294.

Almost surely, 2^899059744440 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 899059744440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1879622690400).

899059744440 is an abundant number, since it is smaller than the sum of its proper divisors (2860185636360).

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

899059744440 is a wasteful number, since it uses less digits than its factorization.

899059744440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1189 (or 1151 counting only the distinct ones).

The product of its (nonzero) digits is 52254720, while the sum is 63.

The spelling of 899059744440 in words is "eight hundred ninety-nine billion, fifty-nine million, seven hundred forty-four thousand, four hundred forty".