26047377664 has 243 divisors, whose sum is σ = 66991197063. Its totient is φ = 10070860800.

The previous prime is 26047377619. The next prime is 26047377691. The reversal of 26047377664 is 46677374062.

The square root of 26047377664 is 161392.

It is a perfect power (a square), and thus also a powerful number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 198834879 + ... + 198835009.

Almost surely, 2^26047377664 is an apocalyptic number.

26047377664 is the 161392-nd square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26047377664

26047377664 is an abundant number, since it is smaller than the sum of its proper divisors (40943819399).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

26047377664 is an equidigital number, since it uses as much as digits as its factorization.

26047377664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 314 (or 151 counting only the distinct ones).

The product of its (nonzero) digits is 7112448, while the sum is 52.

The spelling of 26047377664 in words is "twenty-six billion, forty-seven million, three hundred seventy-seven thousand, six hundred sixty-four".