9699886144 has 63 divisors (see below), whose sum is σ = 20864770437. Its totient is φ = 4472143104.

The previous prime is 9699886139. The next prime is 9699886153. The reversal of 9699886144 is 4416889969.

The square root of 9699886144 is 98488.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 1434894400 + 8264991744 = 37880^2 + 90912^2 .

It is a Harshad number since it is a multiple of its sum of digits (64).

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 10242279 + ... + 10243225.

Almost surely, 2^9699886144 is an apocalyptic number.

9699886144 is the 98488-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9699886144

9699886144 is an abundant number, since it is smaller than the sum of its proper divisors (11164884293).

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

9699886144 is an frugal number, since it uses more digits than its factorization.

9699886144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1932 (or 962 counting only the distinct ones).

The product of its digits is 26873856, while the sum is 64.

The cubic root of 9699886144 is about 2132.6628912321.

Multiplying 9699886144 by its sum of digits (64), we get a square (620792713216 = 787904²).

9699886144 divided by its sum of digits (64) gives a square (151560721 = 12311²).

The spelling of 9699886144 in words is "nine billion, six hundred ninety-nine million, eight hundred eighty-six thousand, one hundred forty-four".