26064491618 has 16 divisors (see below), whose sum is σ = 44505377856. Its totient is φ = 11332387440.

The previous prime is 26064491561. The next prime is 26064491657. The reversal of 26064491618 is 81619446062.

It is a happy number.

26064491618 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25754921 + ... + 25755932.

It is an arithmetic number, because the mean of its divisors is an integer number (2781586116).

Almost surely, 2^26064491618 is an apocalyptic number.

26064491618 is a deficient number, since it is larger than the sum of its proper divisors (18440886238).

26064491618 is a wasteful number, since it uses less digits than its factorization.

26064491618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51510889.

The product of its (nonzero) digits is 497664, while the sum is 47.

The spelling of 26064491618 in words is "twenty-six billion, sixty-four million, four hundred ninety-one thousand, six hundred eighteen".