12649801629 has 16 divisors (see below), whose sum is σ = 16929027648. Its totient is φ = 8401919232.

The previous prime is 12649801621. The next prime is 12649801639. The reversal of 12649801629 is 92610894621.

It is not a de Polignac number, because 12649801629 - 2³ = 12649801621 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12649801621) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2914549 + ... + 2918885.

It is an arithmetic number, because the mean of its divisors is an integer number (1058064228).

Almost surely, 2^12649801629 is an apocalyptic number.

It is an amenable number.

12649801629 is a deficient number, since it is larger than the sum of its proper divisors (4279226019).

12649801629 is a wasteful number, since it uses less digits than its factorization.

12649801629 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7724.

The product of its (nonzero) digits is 373248, while the sum is 48.

The spelling of 12649801629 in words is "twelve billion, six hundred forty-nine million, eight hundred one thousand, six hundred twenty-nine".