11777911244451 has 12 divisors (see below), whose sum is σ = 18559132870200. Its totient is φ = 7138128026880.

The previous prime is 11777911244419. The next prime is 11777911244503. The reversal of 11777911244451 is 15444211977711.

It is a happy number.

11777911244451 is a `hidden beast` number, since 1 + 1 + 7 + 7 + 79 + 1 + 124 + 445 + 1 = 666.

It is not a de Polignac number, because 11777911244451 - 2⁵ = 11777911244419 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11777911244401) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 59484400126 + ... + 59484400323.

It is an arithmetic number, because the mean of its divisors is an integer number (1546594405850).

Almost surely, 2^{11777911244451} is an apocalyptic number.

11777911244451 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11777911244451 is a deficient number, since it is larger than the sum of its proper divisors (6781221625749).

11777911244451 is a wasteful number, since it uses less digits than its factorization.

11777911244451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118968800466 (or 118968800463 counting only the distinct ones).

The product of its digits is 1975680, while the sum is 54.

It can be divided in two parts, 1177791 and 1244451, that added together give a palindrome (2422242).

The spelling of 11777911244451 in words is "eleven trillion, seven hundred seventy-seven billion, nine hundred eleven million, two hundred forty-four thousand, four hundred fifty-one".