10172564894 has 4 divisors (see below), whose sum is σ = 15258847344. Its totient is φ = 5086282446.

The previous prime is 10172564893. The next prime is 10172564939. The reversal of 10172564894 is 49846527101.

It is a happy number.

10172564894 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10172564893) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2543141222 + ... + 2543141225.

It is an arithmetic number, because the mean of its divisors is an integer number (3814711836).

Almost surely, 2^10172564894 is an apocalyptic number.

10172564894 is a deficient number, since it is larger than the sum of its proper divisors (5086282450).

10172564894 is an equidigital number, since it uses as much as digits as its factorization.

10172564894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5086282449.

The product of its (nonzero) digits is 483840, while the sum is 47.

The spelling of 10172564894 in words is "ten billion, one hundred seventy-two million, five hundred sixty-four thousand, eight hundred ninety-four".