9880342749 has 12 divisors (see below), whose sum is σ = 14350457212. Its totient is φ = 6550502400.

The previous prime is 9880342739. The next prime is 9880342757. The reversal of 9880342749 is 9472430889.

It can be written as a sum of positive squares in 2 ways, for example, as 493639524 + 9386703225 = 22218^2 + 96885^2 .

It is not a de Polignac number, because 9880342749 - 2⁷ = 9880342621 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 9880342695 and 9880342704.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9880342739) 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, 3031012 + ... + 3034269.

Almost surely, 2^9880342749 is an apocalyptic number.

It is an amenable number.

9880342749 is a deficient number, since it is larger than the sum of its proper divisors (4470114463).

9880342749 is a wasteful number, since it uses less digits than its factorization.

9880342749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6065468 (or 6065465 counting only the distinct ones).

The product of its (nonzero) digits is 3483648, while the sum is 54.

The square root of 9880342749 is about 99399.9132243082. The cubic root of 9880342749 is about 2145.8070616183.

The spelling of 9880342749 in words is "nine billion, eight hundred eighty million, three hundred forty-two thousand, seven hundred forty-nine".