26045641065 has 32 divisors (see below), whose sum is σ = 43402196736. Its totient is φ = 13325195520.

The previous prime is 26045641057. The next prime is 26045641091. The reversal of 26045641065 is 56014654062.

It is not a de Polignac number, because 26045641065 - 2³ = 26045641057 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 291082 + ... + 369891.

It is an arithmetic number, because the mean of its divisors is an integer number (1356318648).

Almost surely, 2^26045641065 is an apocalyptic number.

It is an amenable number.

26045641065 is a deficient number, since it is larger than the sum of its proper divisors (17356555671).

26045641065 is a wasteful number, since it uses less digits than its factorization.

26045641065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 661089.

The product of its (nonzero) digits is 172800, while the sum is 39.

The spelling of 26045641065 in words is "twenty-six billion, forty-five million, six hundred forty-one thousand, sixty-five".