26506158087 has 8 divisors (see below), whose sum is σ = 36296721136. Its totient is φ = 17193183552.

The previous prime is 26506158061. The next prime is 26506158143. The reversal of 26506158087 is 78085160562.

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

It is not a de Polignac number, because 26506158087 - 2¹⁴ = 26506141703 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26506158047) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 119396998 + ... + 119397219.

It is an arithmetic number, because the mean of its divisors is an integer number (4537090142).

Almost surely, 2^26506158087 is an apocalyptic number.

26506158087 is a deficient number, since it is larger than the sum of its proper divisors (9790563049).

26506158087 is a wasteful number, since it uses less digits than its factorization.

26506158087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238794257.

The product of its (nonzero) digits is 806400, while the sum is 48.

The spelling of 26506158087 in words is "twenty-six billion, five hundred six million, one hundred fifty-eight thousand, eighty-seven".