11772111451 has 8 divisors (see below), whose sum is σ = 11990047680. Its totient is φ = 11555898432.

The previous prime is 11772111437. The next prime is 11772111469. The reversal of 11772111451 is 15411127711.

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

It is a cyclic number.

It is not a de Polignac number, because 11772111451 - 2²³ = 11763722843 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11772115451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 417010 + ... + 444343.

It is an arithmetic number, because the mean of its divisors is an integer number (1498755960).

Almost surely, 2^11772111451 is an apocalyptic number.

11772111451 is a deficient number, since it is larger than the sum of its proper divisors (217936229).

11772111451 is an equidigital number, since it uses as much as digits as its factorization.

11772111451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 861605.

The product of its digits is 1960, while the sum is 31.

The spelling of 11772111451 in words is "eleven billion, seven hundred seventy-two million, one hundred eleven thousand, four hundred fifty-one".