26131605342 has 32 divisors (see below), whose sum is σ = 54558033408. Its totient is φ = 8328377376.

The previous prime is 26131605337. The next prime is 26131605431. The reversal of 26131605342 is 24350613162.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 307588 + ... + 383240.

It is an arithmetic number, because the mean of its divisors is an integer number (1704938544).

Almost surely, 2^26131605342 is an apocalyptic number.

26131605342 is an abundant number, since it is smaller than the sum of its proper divisors (28426428066).

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

26131605342 is a wasteful number, since it uses less digits than its factorization.

26131605342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78184.

The product of its (nonzero) digits is 25920, while the sum is 33.

The spelling of 26131605342 in words is "twenty-six billion, one hundred thirty-one million, six hundred five thousand, three hundred forty-two".