11851730746472 has 16 divisors (see below), whose sum is σ = 22988270844900. Its totient is φ = 5721525187840.

The previous prime is 11851730746441. The next prime is 11851730746517. The reversal of 11851730746472 is 27464703715811.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 11844789523876 + 6941222596 = 3441626^2 + 83314^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25542522929 + ... + 25542523392.

Almost surely, 2^{11851730746472} is an apocalyptic number.

It is an amenable number.

11851730746472 is a deficient number, since it is larger than the sum of its proper divisors (11136540098428).

11851730746472 is a wasteful number, since it uses less digits than its factorization.

11851730746472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51085046356 (or 51085046352 counting only the distinct ones).

The product of its (nonzero) digits is 7902720, while the sum is 56.

The spelling of 11851730746472 in words is "eleven trillion, eight hundred fifty-one billion, seven hundred thirty million, seven hundred forty-six thousand, four hundred seventy-two".