27625025126381 has 8 divisors (see below), whose sum is σ = 28906961531544. Its totient is φ = 26371263147840.

The previous prime is 27625025126371. The next prime is 27625025126401. The reversal of 27625025126381 is 18362152052672.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 15845646074281 + 11779379052100 = 3980659^2 + 3432110^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27625025126381 is a prime.

It is a super-2 number, since 2×27625025126381² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27625025126371) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7043604650 + ... + 7043608571.

It is an arithmetic number, because the mean of its divisors is an integer number (3613370191443).

Almost surely, 2^{27625025126381} is an apocalyptic number.

It is an amenable number.

27625025126381 is a deficient number, since it is larger than the sum of its proper divisors (1281936405163).

27625025126381 is a wasteful number, since it uses less digits than its factorization.

27625025126381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14087213311.

The product of its (nonzero) digits is 2419200, while the sum is 50.

The spelling of 27625025126381 in words is "twenty-seven trillion, six hundred twenty-five billion, twenty-five million, one hundred twenty-six thousand, three hundred eighty-one".