27124197480 has 144 divisors (see below), whose sum is σ = 89236688580. Its totient is φ = 7145319936.

The previous prime is 27124197467. The next prime is 27124197487. The reversal of 27124197480 is 8479142172.

It can be written as a sum of positive squares in 2 ways, for example, as 25874009316 + 1250188164 = 160854^2 + 35358^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (27124197487) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 2474572 + ... + 2485508.

Almost surely, 2^27124197480 is an apocalyptic number.

27124197480 is a gapful number since it is divisible by the number (20) 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 27124197480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44618344290).

27124197480 is an abundant number, since it is smaller than the sum of its proper divisors (62112491100).

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

27124197480 is a wasteful number, since it uses less digits than its factorization.

27124197480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11120 (or 11030 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 45.

The spelling of 27124197480 in words is "twenty-seven billion, one hundred twenty-four million, one hundred ninety-seven thousand, four hundred eighty".