26406510906 has 8 divisors (see below), whose sum is σ = 52813021824. Its totient is φ = 8802170300.

The previous prime is 26406510869. The next prime is 26406510913. The reversal of 26406510906 is 60901560462.

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

26406510906 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2200542570 + ... + 2200542581.

It is an arithmetic number, because the mean of its divisors is an integer number (6601627728).

Almost surely, 2^26406510906 is an apocalyptic number.

26406510906 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

26406510906 is a wasteful number, since it uses less digits than its factorization.

26406510906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4401085156.

The product of its (nonzero) digits is 77760, while the sum is 39.

The spelling of 26406510906 in words is "twenty-six billion, four hundred six million, five hundred ten thousand, nine hundred six".