11772174438 has 12 divisors (see below), whose sum is σ = 25506377988. Its totient is φ = 3924058140.

The previous prime is 11772174409. The next prime is 11772174443. The reversal of 11772174438 is 83447127711.

11772174438 is digitally balanced in base 2 and base 5, because in such bases it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 11772174393 and 11772174402.

It is a congruent number.

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 5 ways as a sum of consecutive naturals, for example, 327004828 + ... + 327004863.

It is an arithmetic number, because the mean of its divisors is an integer number (2125531499).

Almost surely, 2^11772174438 is an apocalyptic number.

11772174438 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

11772174438 is an abundant number, since it is smaller than the sum of its proper divisors (13734203550).

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

11772174438 is a wasteful number, since it uses less digits than its factorization.

11772174438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 654009699 (or 654009696 counting only the distinct ones).

The product of its digits is 263424, while the sum is 45.

The spelling of 11772174438 in words is "eleven billion, seven hundred seventy-two million, one hundred seventy-four thousand, four hundred thirty-eight".