10951951818 has 32 divisors (see below), whose sum is σ = 22283997120. Its totient is φ = 3587351040.

The previous prime is 10951951817. The next prime is 10951951847. The reversal of 10951951818 is 81815915901.

It is not an unprimeable number, because it can be changed into a prime (10951951817) 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, 1249146 + ... + 1257882.

It is an arithmetic number, because the mean of its divisors is an integer number (696374910).

Almost surely, 2^10951951818 is an apocalyptic number.

10951951818 is an abundant number, since it is smaller than the sum of its proper divisors (11332045302).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10951951818 is a wasteful number, since it uses less digits than its factorization.

10951951818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12342.

The product of its (nonzero) digits is 129600, while the sum is 48.

The spelling of 10951951818 in words is "ten billion, nine hundred fifty-one million, nine hundred fifty-one thousand, eight hundred eighteen".