12087153440 has 24 divisors (see below), whose sum is σ = 28555900380. Its totient is φ = 4834861312.

The previous prime is 12087153439. The next prime is 12087153443. The reversal of 12087153440 is 4435178021.

It can be written as a sum of positive squares in 2 ways, for example, as 12081527056 + 5626384 = 109916^2 + 2372^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 12087153440.

It is not an unprimeable number, because it can be changed into a prime (12087153443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37772195 + ... + 37772514.

Almost surely, 2^12087153440 is an apocalyptic number.

12087153440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12087153440 is an abundant number, since it is smaller than the sum of its proper divisors (16468746940).

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

12087153440 is an equidigital number, since it uses as much as digits as its factorization.

12087153440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75544724 (or 75544716 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 35.

The spelling of 12087153440 in words is "twelve billion, eighty-seven million, one hundred fifty-three thousand, four hundred forty".