27403625172 has 192 divisors, whose sum is σ = 83432853504. Its totient is φ = 6788136960.

The previous prime is 27403625153. The next prime is 27403625231. The reversal of 27403625172 is 27152630472.

It is a self number, because there is not a number n which added to its sum of digits gives 27403625172.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 7925268 + ... + 7928724.

It is an arithmetic number, because the mean of its divisors is an integer number (434546112).

Almost surely, 2^27403625172 is an apocalyptic number.

27403625172 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 27403625172, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41716426752).

27403625172 is an abundant number, since it is smaller than the sum of its proper divisors (56029228332).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

27403625172 is a wasteful number, since it uses less digits than its factorization.

27403625172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3878 (or 3876 counting only the distinct ones).

The product of its (nonzero) digits is 141120, while the sum is 39.

The spelling of 27403625172 in words is "twenty-seven billion, four hundred three million, six hundred twenty-five thousand, one hundred seventy-two".