26161649 has 8 divisors (see below), whose sum is σ = 27965952. Its totient is φ = 24412960.

The previous prime is 26161633. The next prime is 26161661. The reversal of 26161649 is 94616162.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 26161649 - 2⁴ = 26161633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26161609) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12929 + ... + 14814.

It is an arithmetic number, because the mean of its divisors is an integer number (3495744).

Almost surely, 2^26161649 is an apocalyptic number.

It is an amenable number.

26161649 is a deficient number, since it is larger than the sum of its proper divisors (1804303).

26161649 is a wasteful number, since it uses less digits than its factorization.

26161649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27807.

The product of its digits is 15552, while the sum is 35.

The square root of 26161649 is about 5114.8459409840. The cubic root of 26161649 is about 296.8622933657.

The spelling of 26161649 in words is "twenty-six million, one hundred sixty-one thousand, six hundred forty-nine".