26242656740 has 36 divisors (see below), whose sum is σ = 58162757436. Its totient is φ = 9944582976.

The previous prime is 26242656731. The next prime is 26242656761. The reversal of 26242656740 is 4765624262.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 15801495616 + 10441161124 = 125704^2 + 102182^2 .

It is a junction number, because it is equal to n+sod(n) for n = 26242656691 and 26242656700.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1810139 + ... + 1824578.

It is an arithmetic number, because the mean of its divisors is an integer number (1615632151).

Almost surely, 2^26242656740 is an apocalyptic number.

26242656740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26242656740 is an abundant number, since it is smaller than the sum of its proper divisors (31920100696).

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

26242656740 is a wasteful number, since it uses less digits than its factorization.

26242656740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3634764 (or 3634743 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 44.

The spelling of 26242656740 in words is "twenty-six billion, two hundred forty-two million, six hundred fifty-six thousand, seven hundred forty".