11778352012 has 24 divisors (see below), whose sum is σ = 24942393504. Its totient is φ = 4750931712.

The previous prime is 11778351989. The next prime is 11778352031. The reversal of 11778352012 is 21025387711.

11778352012 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×11778352012² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12371743 + ... + 12372694.

It is an arithmetic number, because the mean of its divisors is an integer number (1039266396).

Almost surely, 2^11778352012 is an apocalyptic number.

It is an amenable number.

11778352012 is an abundant number, since it is smaller than the sum of its proper divisors (13164041492).

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

11778352012 is a wasteful number, since it uses less digits than its factorization.

11778352012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24744465 (or 24744463 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 37.

The spelling of 11778352012 in words is "eleven billion, seven hundred seventy-eight million, three hundred fifty-two thousand, twelve".