12029894649 has 12 divisors (see below), whose sum is σ = 17396660736. Its totient is φ = 8010631512.

The previous prime is 12029894647. The next prime is 12029894651. The reversal of 12029894649 is 94649892021.

It is an interprime number because it is at equal distance from previous prime (12029894647) and next prime (12029894651).

It is not a de Polignac number, because 12029894649 - 2¹ = 12029894647 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12029894595 and 12029894604.

It is not an unprimeable number, because it can be changed into a prime (12029894641) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 766657 + ... + 782190.

It is an arithmetic number, because the mean of its divisors is an integer number (1449721728).

Almost surely, 2^12029894649 is an apocalyptic number.

It is an amenable number.

12029894649 is a deficient number, since it is larger than the sum of its proper divisors (5366766087).

12029894649 is a wasteful number, since it uses less digits than its factorization.

12029894649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1549716 (or 1549713 counting only the distinct ones).

The product of its (nonzero) digits is 2239488, while the sum is 54.

The spelling of 12029894649 in words is "twelve billion, twenty-nine million, eight hundred ninety-four thousand, six hundred forty-nine".