11825427971345 has 4 divisors (see below), whose sum is σ = 14190513565620. Its totient is φ = 9460342377072.

The previous prime is 11825427971323. The next prime is 11825427971347. The reversal of 11825427971345 is 54317972452811.

11825427971345 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Cunningham number, because it is equal to 3438812²+1.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4257157370944 + 7568270600401 = 2063288^2 + 2751049^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11825427971345 is a prime.

It is a super-2 number, since 2×11825427971345² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11825427971347) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1182542797130 + ... + 1182542797139.

It is an arithmetic number, because the mean of its divisors is an integer number (3547628391405).

Almost surely, 2^{11825427971345} is an apocalyptic number.

It is an amenable number.

11825427971345 is a deficient number, since it is larger than the sum of its proper divisors (2365085594275).

11825427971345 is an equidigital number, since it uses as much as digits as its factorization.

11825427971345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2365085594274.

The product of its digits is 16934400, while the sum is 59.

The spelling of 11825427971345 in words is "eleven trillion, eight hundred twenty-five billion, four hundred twenty-seven million, nine hundred seventy-one thousand, three hundred forty-five".