899997947604 has 288 divisors, whose sum is σ = 2802159360000. Its totient is φ = 237989816064.

The previous prime is 899997947503. The next prime is 899997947621. The reversal of 899997947604 is 406749799998.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 26650522 + ... + 26684270.

It is an arithmetic number, because the mean of its divisors is an integer number (9729720000).

Almost surely, 2^899997947604 is an apocalyptic number.

899997947604 is a gapful number since it is divisible by the number (84) 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 899997947604, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1401079680000).

899997947604 is an abundant number, since it is smaller than the sum of its proper divisors (1902161412396).

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

899997947604 is a wasteful number, since it uses less digits than its factorization.

899997947604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33939 (or 33934 counting only the distinct ones).

The product of its (nonzero) digits is 2222131968, while the sum is 81.

The spelling of 899997947604 in words is "eight hundred ninety-nine billion, nine hundred ninety-seven million, nine hundred forty-seven thousand, six hundred four".