9981076250 has 40 divisors (see below), whose sum is σ = 18756586596. Its totient is φ = 3982176000.

The previous prime is 9981076241. The next prime is 9981076277. The reversal of 9981076250 is 526701899.

It can be written as a sum of positive squares in 10 ways, for example, as 2004621529 + 7976454721 = 44773^2 + 89311^2 .

It is a junction number, because it is equal to n+sod(n) for n = 9981076195 and 9981076204.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 486194 + ... + 506306.

Almost surely, 2^9981076250 is an apocalyptic number.

9981076250 is a deficient number, since it is larger than the sum of its proper divisors (8775510346).

9981076250 is a wasteful number, since it uses less digits than its factorization.

9981076250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20532 (or 20517 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 47.

The square root of 9981076250 is about 99905.3364440559. The cubic root of 9981076250 is about 2153.0748324351.

The spelling of 9981076250 in words is "nine billion, nine hundred eighty-one million, seventy-six thousand, two hundred fifty".