10001010991918 has 16 divisors (see below), whose sum is σ = 15653865664800. Its totient is φ = 4783058807296.

The previous prime is 10001010991903. The next prime is 10001010991919. The reversal of 10001010991918 is 81919901010001.

It is a super-2 number, since 2×10001010991918² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10001010991919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6683046 + ... + 8041462.

It is an arithmetic number, because the mean of its divisors is an integer number (978366604050).

Almost surely, 2^{10001010991918} is an apocalyptic number.

10001010991918 is a deficient number, since it is larger than the sum of its proper divisors (5652854672882).

10001010991918 is a wasteful number, since it uses less digits than its factorization.

10001010991918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1518491.

The product of its (nonzero) digits is 5832, while the sum is 40.

The spelling of 10001010991918 in words is "ten trillion, one billion, ten million, nine hundred ninety-one thousand, nine hundred eighteen".