26143395201 has 24 divisors (see below), whose sum is σ = 47080747584. Its totient is φ = 13580984160.

The previous prime is 26143395193. The next prime is 26143395221. The reversal of 26143395201 is 10259334162.

26143395201 is a `hidden beast` number, since 2 + 61 + 4 + 3 + 395 + 201 = 666.

It is not a de Polignac number, because 26143395201 - 2³ = 26143395193 is a prime.

It is a super-2 number, since 2×26143395201² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (26143395221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18861786 + ... + 18863171.

It is an arithmetic number, because the mean of its divisors is an integer number (1961697816).

Almost surely, 2^26143395201 is an apocalyptic number.

26143395201 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

26143395201 is a deficient number, since it is larger than the sum of its proper divisors (20937352383).

26143395201 is a wasteful number, since it uses less digits than its factorization.

26143395201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37724981 (or 37724978 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

The spelling of 26143395201 in words is "twenty-six billion, one hundred forty-three million, three hundred ninety-five thousand, two hundred one".