26040035406 has 48 divisors (see below), whose sum is σ = 66090487680. Its totient is φ = 6763644720.

The previous prime is 26040035393. The next prime is 26040035407. The reversal of 26040035406 is 60453004062.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26040035407) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4022746 + ... + 4029213.

It is an arithmetic number, because the mean of its divisors is an integer number (1376885160).

Almost surely, 2^26040035406 is an apocalyptic number.

26040035406 is an abundant number, since it is smaller than the sum of its proper divisors (40050452274).

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

26040035406 is a wasteful number, since it uses less digits than its factorization.

26040035406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8051989 (or 8051982 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 30.

Adding to 26040035406 its reverse (60453004062), we get a palindrome (86493039468).

The spelling of 26040035406 in words is "twenty-six billion, forty million, thirty-five thousand, four hundred six".