26403515342642 has 32 divisors (see below), whose sum is σ = 41596251840000. Its totient is φ = 12552822749376.

The previous prime is 26403515342641. The next prime is 26403515342653. The reversal of 26403515342642 is 24624351530462.

It is not an unprimeable number, because it can be changed into a prime (26403515342641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5624342 + ... + 9189137.

It is an arithmetic number, because the mean of its divisors is an integer number (1299882870000).

Almost surely, 2^{26403515342642} is an apocalyptic number.

26403515342642 is a deficient number, since it is larger than the sum of its proper divisors (15192736497358).

26403515342642 is a wasteful number, since it uses less digits than its factorization.

26403515342642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14813978.

The product of its (nonzero) digits is 4147200, while the sum is 47.

The spelling of 26403515342642 in words is "twenty-six trillion, four hundred three billion, five hundred fifteen million, three hundred forty-two thousand, six hundred forty-two".