11948238864 has 45 divisors (see below), whose sum is σ = 33442145373. Its totient is φ = 3982309056.

The previous prime is 11948238859. The next prime is 11948238917. The reversal of 11948238864 is 46883284911.

It is a happy number.

The square root of 11948238864 is 109308.

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., 1347477264 + 10600761600 = 36708^2 + 102960^2 .

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 11948238864.

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, 1307142 + ... + 1316250.

Almost surely, 2^11948238864 is an apocalyptic number.

11948238864 is the 109308-th square number.

It is an amenable number.

11948238864 is an abundant number, since it is smaller than the sum of its proper divisors (21493906509).

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

11948238864 is an frugal number, since it uses more digits than its factorization.

11948238864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18232 (or 9114 counting only the distinct ones).

The product of its digits is 2654208, while the sum is 54.

The spelling of 11948238864 in words is "eleven billion, nine hundred forty-eight million, two hundred thirty-eight thousand, eight hundred sixty-four".