2178648976 has 45 divisors (see below), whose sum is σ = 4913244219. Its totient is φ = 933146592.

The previous prime is 2178648971. The next prime is 2178649001. The reversal of 2178648976 is 6798468712.

The square root of 2178648976 is 46676.

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

It is a super-2 number, since 2×2178648976² = 9493022721251697152, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2178648976.

It is not an unprimeable number, because it can be changed into a prime (2178648971) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1306095 + ... + 1307761.

Almost surely, 2^2178648976 is an apocalyptic number.

2178648976 is the 46676-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2178648976

2178648976 is an abundant number, since it is smaller than the sum of its proper divisors (2734595243).

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

2178648976 is an frugal number, since it uses more digits than its factorization.

2178648976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3356 (or 1676 counting only the distinct ones).

The product of its digits is 8128512, while the sum is 58.

The cubic root of 2178648976 is about 1296.3703439143.

The spelling of 2178648976 in words is "two billion, one hundred seventy-eight million, six hundred forty-eight thousand, nine hundred seventy-six".