9777002500 has 60 divisors (see below), whose sum is σ = 21460730368. Its totient is φ = 3896100000.

The previous prime is 9777002497. The next prime is 9777002509. The reversal of 9777002500 is 52007779.

It is a self number, because there is not a number n which added to its sum of digits gives 9777002500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9777002509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 670285 + ... + 684715.

Almost surely, 2^9777002500 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9777002500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10730365184).

9777002500 is an abundant number, since it is smaller than the sum of its proper divisors (11683727868).

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

9777002500 is a wasteful number, since it uses less digits than its factorization.

9777002500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14726 (or 14709 counting only the distinct ones).

The product of its (nonzero) digits is 30870, while the sum is 37.

The square root of 9777002500 is about 98878.7262256144. The cubic root of 9777002500 is about 2138.2997019105.

The spelling of 9777002500 in words is "nine billion, seven hundred seventy-seven million, two thousand, five hundred".