27000000072 has 48 divisors (see below), whose sum is σ = 74323782780. Its totient is φ = 8852457600.

The previous prime is 27000000023. The next prime is 27000000109.

27000000072 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 2 ways, for example, as 19659965796 + 7340034276 = 140214^2 + 85674^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 26999999991 and 27000000054.

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, 3069379 + ... + 3078162.

Almost surely, 2^27000000072 is an apocalyptic number.

It is an amenable number.

27000000072 is an abundant number, since it is smaller than the sum of its proper divisors (47323782708).

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

27000000072 is a wasteful number, since it uses less digits than its factorization.

27000000072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6147614 (or 6147607 counting only the distinct ones).

The product of its (nonzero) digits is 196, while the sum is 18.

It can be divided in two parts, 270000000 and 72, that added together give a palindrome (270000072).

The spelling of 27000000072 in words is "twenty-seven billion, seventy-two", and thus it is an aban number and an uban number.