9995012261 has 16 divisors (see below), whose sum is σ = 10974144384. Its totient is φ = 9046150464.

The previous prime is 9995012243. The next prime is 9995012303. The reversal of 9995012261 is 1622105999.

It is not a de Polignac number, because 9995012261 - 2¹⁴ = 9994995877 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9995012221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1310120 + ... + 1317726.

It is an arithmetic number, because the mean of its divisors is an integer number (685884024).

Almost surely, 2^9995012261 is an apocalyptic number.

It is an amenable number.

9995012261 is a deficient number, since it is larger than the sum of its proper divisors (979132123).

9995012261 is a wasteful number, since it uses less digits than its factorization.

9995012261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9580.

The product of its (nonzero) digits is 87480, while the sum is 44.

The square root of 9995012261 is about 99975.0581945317. The cubic root of 9995012261 is about 2154.0764385322.

It can be divided in two parts, 99950 and 12261, that added together give a palindrome (112211).

The spelling of 9995012261 in words is "nine billion, nine hundred ninety-five million, twelve thousand, two hundred sixty-one".