26690489376 has 24 divisors (see below), whose sum is σ = 70062534864. Its totient is φ = 8896829760.

The previous prime is 26690489321. The next prime is 26690489383. The reversal of 26690489376 is 67398409662.

It is a tau number, because it is divible by the number of its divisors (24).

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 3 ways as a sum of consecutive naturals, for example, 139012870 + ... + 139013061.

It is an arithmetic number, because the mean of its divisors is an integer number (2919272286).

Almost surely, 2^26690489376 is an apocalyptic number.

It is an amenable number.

26690489376 is an abundant number, since it is smaller than the sum of its proper divisors (43372045488).

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

26690489376 is a wasteful number, since it uses less digits than its factorization.

26690489376 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278025944 (or 278025936 counting only the distinct ones).

The product of its (nonzero) digits is 23514624, while the sum is 60.

The spelling of 26690489376 in words is "twenty-six billion, six hundred ninety million, four hundred eighty-nine thousand, three hundred seventy-six".