12649961453 has 8 divisors (see below), whose sum is σ = 12710908800. Its totient is φ = 12589159968.

The previous prime is 12649961447. The next prime is 12649961459. The reversal of 12649961453 is 35416994621.

It is an interprime number because it is at equal distance from previous prime (12649961447) and next prime (12649961459).

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 12649961453 - 2¹⁴ = 12649945069 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 (12649961459) 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, 139433 + ... + 211521.

It is an arithmetic number, because the mean of its divisors is an integer number (1588863600).

Almost surely, 2^12649961453 is an apocalyptic number.

It is an amenable number.

12649961453 is a deficient number, since it is larger than the sum of its proper divisors (60947347).

12649961453 is an equidigital number, since it uses as much as digits as its factorization.

12649961453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72931.

The product of its digits is 1399680, while the sum is 50.

The spelling of 12649961453 in words is "twelve billion, six hundred forty-nine million, nine hundred sixty-one thousand, four hundred fifty-three".