10249917818 has 32 divisors (see below), whose sum is σ = 18187804800. Its totient is φ = 4238869824.

The previous prime is 10249917817. The next prime is 10249917827. The reversal of 10249917818 is 81871994201.

It is a happy number.

It is a super-2 number, since 2×10249917818² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10249917817) 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, 797096 + ... + 809852.

It is an arithmetic number, because the mean of its divisors is an integer number (568368900).

Almost surely, 2^10249917818 is an apocalyptic number.

10249917818 is a deficient number, since it is larger than the sum of its proper divisors (7937886982).

10249917818 is a wasteful number, since it uses less digits than its factorization.

10249917818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14774.

The product of its (nonzero) digits is 290304, while the sum is 50.

The spelling of 10249917818 in words is "ten billion, two hundred forty-nine million, nine hundred seventeen thousand, eight hundred eighteen".