9940636275 has 48 divisors (see below), whose sum is σ = 16818718176. Its totient is φ = 5178833920.

The previous prime is 9940636273. The next prime is 9940636319. The reversal of 9940636275 is 5726360499.

It is not a de Polignac number, because 9940636275 - 2¹ = 9940636273 is a prime.

It is not an unprimeable number, because it can be changed into a prime (9940636273) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 920809 + ... + 931541.

It is an arithmetic number, because the mean of its divisors is an integer number (350389962).

Almost surely, 2^9940636275 is an apocalyptic number.

9940636275 is a deficient number, since it is larger than the sum of its proper divisors (6878081901).

9940636275 is a wasteful number, since it uses less digits than its factorization.

9940636275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11032 (or 11027 counting only the distinct ones).

The product of its (nonzero) digits is 2449440, while the sum is 51.

The square root of 9940636275 is about 99702.7395561426. The cubic root of 9940636275 is about 2150.1630505512.

The spelling of 9940636275 in words is "nine billion, nine hundred forty million, six hundred thirty-six thousand, two hundred seventy-five".