11864709630 has 64 divisors (see below), whose sum is σ = 31716878400. Its totient is φ = 3156157440.

The previous prime is 11864709617. The next prime is 11864709653. The reversal of 11864709630 is 3690746811.

It is a happy number.

11864709630 is a `hidden beast` number, since 1 + 1 + 8 + 6 + 4 + 7 + 0 + 9 + 630 = 666.

11864709630 is digitally balanced in base 5, because in such base 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 (45).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 56710 + ... + 164150.

It is an arithmetic number, because the mean of its divisors is an integer number (495576225).

Almost surely, 2^11864709630 is an apocalyptic number.

11864709630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 11864709630, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15858439200).

11864709630 is an abundant number, since it is smaller than the sum of its proper divisors (19852168770).

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

11864709630 is a wasteful number, since it uses less digits than its factorization.

11864709630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107866 (or 107860 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The spelling of 11864709630 in words is "eleven billion, eight hundred sixty-four million, seven hundred nine thousand, six hundred thirty".