10815999994 has 8 divisors (see below), whose sum is σ = 16224468480. Its totient is φ = 5407843836.

The previous prime is 10815999977. The next prime is 10816000001. The reversal of 10815999994 is 49999951801.

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

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 51517 + ... + 155839.

It is an arithmetic number, because the mean of its divisors is an integer number (2028058560).

Almost surely, 2^10815999994 is an apocalyptic number.

10815999994 is a deficient number, since it is larger than the sum of its proper divisors (5408468486).

10815999994 is a wasteful number, since it uses less digits than its factorization.

10815999994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156164.

The product of its (nonzero) digits is 9447840, while the sum is 64.

The spelling of 10815999994 in words is "ten billion, eight hundred fifteen million, nine hundred ninety-nine thousand, nine hundred ninety-four".