26540219870 has 16 divisors (see below), whose sum is σ = 47788995168. Its totient is φ = 10612399200.

The previous prime is 26540219833. The next prime is 26540219899. The reversal of 26540219870 is 7891204562.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 430781 + ... + 488520.

It is an arithmetic number, because the mean of its divisors is an integer number (2986812198).

Almost surely, 2^26540219870 is an apocalyptic number.

26540219870 is a deficient number, since it is larger than the sum of its proper divisors (21248775298).

26540219870 is a wasteful number, since it uses less digits than its factorization.

26540219870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 922195.

The product of its (nonzero) digits is 241920, while the sum is 44.

The spelling of 26540219870 in words is "twenty-six billion, five hundred forty million, two hundred nineteen thousand, eight hundred seventy".