909209672448 has 576 divisors, whose sum is σ = 3060152524800. Its totient is φ = 232800583680.

The previous prime is 909209672447. The next prime is 909209672461. The reversal of 909209672448 is 844276902909.

It is a junction number, because it is equal to n+sod(n) for n = 909209672391 and 909209672400.

It is not an unprimeable number, because it can be changed into a prime (909209672447) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2398969923 + ... + 2398970301.

It is an arithmetic number, because the mean of its divisors is an integer number (5312764800).

Almost surely, 2^909209672448 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 909209672448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1530076262400).

909209672448 is an abundant number, since it is smaller than the sum of its proper divisors (2150942852352).

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

909209672448 is a wasteful number, since it uses less digits than its factorization.

909209672448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 888 (or 874 counting only the distinct ones).

The product of its (nonzero) digits is 15676416, while the sum is 60.

The spelling of 909209672448 in words is "nine hundred nine billion, two hundred nine million, six hundred seventy-two thousand, four hundred forty-eight".