899038812672 has 2160 divisors, whose sum is σ = 3728843838720. Its totient is φ = 203692769280.

The previous prime is 899038812613. The next prime is 899038812691. The reversal of 899038812672 is 276218830998.

899038812672 is a `hidden beast` number, since 89 + 90 + 388 + 1 + 26 + 72 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is an unprimeable number.

It is a polite number, since it can be written in 215 ways as a sum of consecutive naturals, for example, 19128485353 + ... + 19128485399.

It is an arithmetic number, because the mean of its divisors is an integer number (1726316592).

Almost surely, 2^899038812672 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 899038812672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1864421919360).

899038812672 is an abundant number, since it is smaller than the sum of its proper divisors (2829805026048).

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

899038812672 is a wasteful number, since it uses less digits than its factorization.

899038812672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155 (or 112 counting only the distinct ones).

The product of its (nonzero) digits is 20901888, while the sum is 63.

The spelling of 899038812672 in words is "eight hundred ninety-nine billion, thirty-eight million, eight hundred twelve thousand, six hundred seventy-two".