26290028164 has 9 divisors (see below), whose sum is σ = 46008116791. Its totient is φ = 13144851940.

The previous prime is 26290028117. The next prime is 26290028189. The reversal of 26290028164 is 46182009262.

The square root of 26290028164 is 162142.

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

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 283749 + ... + 364819.

Almost surely, 2^26290028164 is an apocalyptic number.

26290028164 is the 162142-nd square number.

It is an amenable number.

26290028164 is a deficient number, since it is larger than the sum of its proper divisors (19718088627).

26290028164 is an frugal number, since it uses more digits than its factorization.

26290028164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162146 (or 81073 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 40.

The spelling of 26290028164 in words is "twenty-six billion, two hundred ninety million, twenty-eight thousand, one hundred sixty-four".