12462063440 has 20 divisors (see below), whose sum is σ = 28974297684. Its totient is φ = 4984825344.

The previous prime is 12462063437. The next prime is 12462063443. The reversal of 12462063440 is 4436026421.

It is an interprime number because it is at equal distance from previous prime (12462063437) and next prime (12462063443).

It can be written as a sum of positive squares in 2 ways, for example, as 8571797056 + 3890266384 = 92584^2 + 62372^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a junction number, because it is equal to n+sod(n) for n = 12462063397 and 12462063406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12462063443) 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, 77887817 + ... + 77887976.

Almost surely, 2^12462063440 is an apocalyptic number.

12462063440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12462063440 is an abundant number, since it is smaller than the sum of its proper divisors (16512234244).

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

12462063440 is a wasteful number, since it uses less digits than its factorization.

12462063440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155775806 (or 155775800 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 32.

Adding to 12462063440 its reverse (4436026421), we get a palindrome (16898089861).

The spelling of 12462063440 in words is "twelve billion, four hundred sixty-two million, sixty-three thousand, four hundred forty".