27515150149 has 8 divisors (see below), whose sum is σ = 28473411960. Its totient is φ = 26557519296.

The previous prime is 27515150123. The next prime is 27515150191. The reversal of 27515150149 is 94105151572.

It can be written as a sum of positive squares in 4 ways, for example, as 5388587649 + 22126562500 = 73407^2 + 148750^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 27515150149 - 2¹³ = 27515141957 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 (27515150249) 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, 68134 + ... + 244279.

It is an arithmetic number, because the mean of its divisors is an integer number (3559176495).

Almost surely, 2^27515150149 is an apocalyptic number.

27515150149 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

It is an amenable number.

27515150149 is a deficient number, since it is larger than the sum of its proper divisors (958261811).

27515150149 is a wasteful number, since it uses less digits than its factorization.

27515150149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 315479.

The product of its (nonzero) digits is 63000, while the sum is 40.

It can be divided in two parts, 2751 and 5150149, that added together give a square (5152900 = 2270²).

The spelling of 27515150149 in words is "twenty-seven billion, five hundred fifteen million, one hundred fifty thousand, one hundred forty-nine".