26921191090 has 16 divisors (see below), whose sum is σ = 48675449088. Its totient is φ = 10720186416.

The previous prime is 26921191051. The next prime is 26921191091. The reversal of 26921191090 is 9019112962.

It is not an unprimeable number, because it can be changed into a prime (26921191091) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6033912 + ... + 6038371.

It is an arithmetic number, because the mean of its divisors is an integer number (3042215568).

Almost surely, 2^26921191090 is an apocalyptic number.

26921191090 is a deficient number, since it is larger than the sum of its proper divisors (21754257998).

26921191090 is a wasteful number, since it uses less digits than its factorization.

26921191090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12072513.

The product of its (nonzero) digits is 17496, while the sum is 40.

The spelling of 26921191090 in words is "twenty-six billion, nine hundred twenty-one million, one hundred ninety-one thousand, ninety".