9963426149 has 4 divisors (see below), whose sum is σ = 9975712320. Its totient is φ = 9951139980.

The previous prime is 9963426139. The next prime is 9963426163. The reversal of 9963426149 is 9416243699.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9416243699 = 89 ⋅105800491.

It is a cyclic number.

It is not a de Polignac number, because 9963426149 - 2¹⁶ = 9963360613 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 9963426149.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9963426139) 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, 6141869 + ... + 6143490.

It is an arithmetic number, because the mean of its divisors is an integer number (2493928080).

Almost surely, 2^9963426149 is an apocalyptic number.

It is an amenable number.

9963426149 is a deficient number, since it is larger than the sum of its proper divisors (12286171).

9963426149 is a wasteful number, since it uses less digits than its factorization.

9963426149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12286170.

The product of its digits is 2519424, while the sum is 53.

The square root of 9963426149 is about 99816.9632327091. The cubic root of 9963426149 is about 2151.8049489848.

The spelling of 9963426149 in words is "nine billion, nine hundred sixty-three million, four hundred twenty-six thousand, one hundred forty-nine".