10172228991 has 8 divisors (see below), whose sum is σ = 13592267520. Its totient is φ = 6766838232.

The previous prime is 10172228981. The next prime is 10172229031. The reversal of 10172228991 is 19982227101.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 10172228991 - 2¹⁴ = 10172212607 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10172228921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3660321 + ... + 3663098.

It is an arithmetic number, because the mean of its divisors is an integer number (1699033440).

Almost surely, 2^10172228991 is an apocalyptic number.

10172228991 is a deficient number, since it is larger than the sum of its proper divisors (3420038529).

10172228991 is an equidigital number, since it uses as much as digits as its factorization.

10172228991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7323885.

The product of its (nonzero) digits is 36288, while the sum is 42.

The spelling of 10172228991 in words is "ten billion, one hundred seventy-two million, two hundred twenty-eight thousand, nine hundred ninety-one".