10909991094 has 16 divisors (see below), whose sum is σ = 23103510768. Its totient is φ = 3422742272.

The previous prime is 10909991047. The next prime is 10909991123. The reversal of 10909991094 is 49019990901.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53480247 + ... + 53480450.

It is an arithmetic number, because the mean of its divisors is an integer number (1443969423).

Almost surely, 2^10909991094 is an apocalyptic number.

10909991094 is an abundant number, since it is smaller than the sum of its proper divisors (12193519674).

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

10909991094 is a wasteful number, since it uses less digits than its factorization.

10909991094 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106960719.

The product of its (nonzero) digits is 236196, while the sum is 51.

The spelling of 10909991094 in words is "ten billion, nine hundred nine million, nine hundred ninety-one thousand, ninety-four".