11919338810 has 8 divisors (see below), whose sum is σ = 21454809876. Its totient is φ = 4767735520.

The previous prime is 11919338779. The next prime is 11919338819. The reversal of 11919338810 is 1883391911.

It can be written as a sum of positive squares in 2 ways, for example, as 11694908449 + 224430361 = 108143^2 + 14981^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×11919338810² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11919338819) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 595966931 + ... + 595966950.

Almost surely, 2^11919338810 is an apocalyptic number.

11919338810 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11919338810 is a deficient number, since it is larger than the sum of its proper divisors (9535471066).

11919338810 is a wasteful number, since it uses less digits than its factorization.

11919338810 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1191933888.

The product of its (nonzero) digits is 46656, while the sum is 44.

The spelling of 11919338810 in words is "eleven billion, nine hundred nineteen million, three hundred thirty-eight thousand, eight hundred ten".