27401389025 has 12 divisors (see below), whose sum is σ = 35073778944. Its totient is φ = 21213978000.

The previous prime is 27401389013. The next prime is 27401389031. The reversal of 27401389025 is 52098310472.

It is not a de Polignac number, because 27401389025 - 2⁶ = 27401388961 is a prime.

It is a super-2 number, since 2×27401389025² (a number of 22 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17677541 + ... + 17679090.

It is an arithmetic number, because the mean of its divisors is an integer number (2922814912).

Almost surely, 2^27401389025 is an apocalyptic number.

27401389025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

27401389025 is a deficient number, since it is larger than the sum of its proper divisors (7672389919).

27401389025 is a wasteful number, since it uses less digits than its factorization.

27401389025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35356672 (or 35356667 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 41.

Adding to 27401389025 its reverse (52098310472), we get a palindrome (79499699497).

The spelling of 27401389025 in words is "twenty-seven billion, four hundred one million, three hundred eighty-nine thousand, twenty-five".