2197650000 has 720 divisors, whose sum is σ = 9276156288. Its totient is φ = 443520000.

The previous prime is 2197649969. The next prime is 2197650001. The reversal of 2197650000 is 567912.

2197650000 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 a Harshad number since it is a multiple of its sum of digits (30).

It is a self number, because there is not a number n which added to its sum of digits gives 2197650000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2197650001) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 95549989 + ... + 95550011.

Almost surely, 2^2197650000 is an apocalyptic number.

2197650000 is a gapful number since it is divisible by the number (20) 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 2197650000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4638078144).

2197650000 is an abundant number, since it is smaller than the sum of its proper divisors (7078506288).

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

2197650000 is a wasteful number, since it uses less digits than its factorization.

2197650000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86 (or 53 counting only the distinct ones).

The product of its (nonzero) digits is 3780, while the sum is 30.

The square root of 2197650000 is about 46879.0998207090. The cubic root of 2197650000 is about 1300.1281924868.

The spelling of 2197650000 in words is "two billion, one hundred ninety-seven million, six hundred fifty thousand".