9749883780 has 648 divisors, whose sum is σ = 38637091584. Its totient is φ = 1981324800.

The previous prime is 9749883779. The next prime is 9749883791. The reversal of 9749883780 is 873889479.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is an unprimeable number.

It is a polite number, since it can be written in 215 ways as a sum of consecutive naturals, for example, 46207875 + ... + 46208085.

Almost surely, 2^9749883780 is an apocalyptic number.

9749883780 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9749883780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19318545792).

9749883780 is an abundant number, since it is smaller than the sum of its proper divisors (28887207804).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9749883780 is a wasteful number, since it uses less digits than its factorization.

9749883780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 297 (or 272 counting only the distinct ones).

The product of its (nonzero) digits is 24385536, while the sum is 63.

The square root of 9749883780 is about 98741.4997860575. The cubic root of 9749883780 is about 2136.3208524667.

The spelling of 9749883780 in words is "nine billion, seven hundred forty-nine million, eight hundred eighty-three thousand, seven hundred eighty".