26187885087 has 32 divisors (see below), whose sum is σ = 43001075712. Its totient is φ = 13805005824.

The previous prime is 26187885083. The next prime is 26187885107. The reversal of 26187885087 is 78058878162.

It is not a de Polignac number, because 26187885087 - 2² = 26187885083 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 26187885087.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26187885083) 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 31 ways as a sum of consecutive naturals, for example, 435018 + ... + 491544.

It is an arithmetic number, because the mean of its divisors is an integer number (1343783616).

Almost surely, 2^26187885087 is an apocalyptic number.

26187885087 is a deficient number, since it is larger than the sum of its proper divisors (16813190625).

26187885087 is a wasteful number, since it uses less digits than its factorization.

26187885087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58247.

The product of its (nonzero) digits is 12042240, while the sum is 60.

The spelling of 26187885087 in words is "twenty-six billion, one hundred eighty-seven million, eight hundred eighty-five thousand, eighty-seven".