27051690125 has 36 divisors (see below), whose sum is σ = 34604658036. Its totient is φ = 21113227200.

The previous prime is 27051690121. The next prime is 27051690167. The reversal of 27051690125 is 52109615072.

It is a happy number.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 6 ways, for example, as 25266374116 + 1785316009 = 158954^2 + 42253^2 .

It is not a de Polignac number, because 27051690125 - 2² = 27051690121 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27051690121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 86426969 + ... + 86427281.

It is an arithmetic number, because the mean of its divisors is an integer number (961240501).

Almost surely, 2^27051690125 is an apocalyptic number.

27051690125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

27051690125 is a deficient number, since it is larger than the sum of its proper divisors (7552967911).

27051690125 is an frugal number, since it uses more digits than its factorization.

27051690125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 735 (or 365 counting only the distinct ones).

The product of its (nonzero) digits is 37800, while the sum is 38.

The spelling of 27051690125 in words is "twenty-seven billion, fifty-one million, six hundred ninety thousand, one hundred twenty-five".