9409812501 has 16 divisors (see below), whose sum is σ = 12667132800. Its totient is φ = 6212935680.

The previous prime is 9409812499. The next prime is 9409812523. The reversal of 9409812501 is 1052189049.

It is not a de Polignac number, because 9409812501 - 2¹ = 9409812499 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 9409812501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9409812101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 464341 + ... + 484181.

It is an arithmetic number, because the mean of its divisors is an integer number (791695800).

Almost surely, 2^9409812501 is an apocalyptic number.

It is an amenable number.

9409812501 is a deficient number, since it is larger than the sum of its proper divisors (3257320299).

9409812501 is a wasteful number, since it uses less digits than its factorization.

9409812501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21356.

The product of its (nonzero) digits is 25920, while the sum is 39.

The square root of 9409812501 is about 97004.1880590730. The cubic root of 9409812501 is about 2111.1883949577.

The spelling of 9409812501 in words is "nine billion, four hundred nine million, eight hundred twelve thousand, five hundred one".