26720306143 has 32 divisors (see below), whose sum is σ = 29323607040. Its totient is φ = 24268527360.

The previous prime is 26720306099. The next prime is 26720306149. The reversal of 26720306143 is 34160302762.

It is a cyclic number.

It is not a de Polignac number, because 26720306143 - 2¹³ = 26720297951 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 26720306099 and 26720306108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26720306149) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 24491028 + ... + 24492118.

It is an arithmetic number, because the mean of its divisors is an integer number (916362720).

Almost surely, 2^26720306143 is an apocalyptic number.

26720306143 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

26720306143 is a deficient number, since it is larger than the sum of its proper divisors (2603300897).

26720306143 is a wasteful number, since it uses less digits than its factorization.

26720306143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1719.

The product of its (nonzero) digits is 36288, while the sum is 34.

The spelling of 26720306143 in words is "twenty-six billion, seven hundred twenty million, three hundred six thousand, one hundred forty-three".