10817691225 has 24 divisors (see below), whose sum is σ = 19511182752. Its totient is φ = 5244940800.

The previous prime is 10817691197. The next prime is 10817691229. The reversal of 10817691225 is 52219671801.

It is not a de Polignac number, because 10817691225 - 2⁶ = 10817691161 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (10817691229) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6555352 + ... + 6557001.

It is an arithmetic number, because the mean of its divisors is an integer number (812965948).

Almost surely, 2^10817691225 is an apocalyptic number.

10817691225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

10817691225 is a deficient number, since it is larger than the sum of its proper divisors (8693491527).

10817691225 is a wasteful number, since it uses less digits than its factorization.

10817691225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13112377 (or 13112372 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 42.

The spelling of 10817691225 in words is "ten billion, eight hundred seventeen million, six hundred ninety-one thousand, two hundred twenty-five".