26820437147 has 8 divisors (see below), whose sum is σ = 30807523296. Its totient is φ = 22872249792.

The previous prime is 26820437131. The next prime is 26820437173. The reversal of 26820437147 is 74173402862.

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

It is not a de Polignac number, because 26820437147 - 2⁴ = 26820437131 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 26820437098 and 26820437107.

It is not an unprimeable number, because it can be changed into a prime (26820437647) 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, 9723218 + ... + 9725975.

It is an arithmetic number, because the mean of its divisors is an integer number (3850940412).

Almost surely, 2^26820437147 is an apocalyptic number.

26820437147 is a deficient number, since it is larger than the sum of its proper divisors (3987086149).

26820437147 is a wasteful number, since it uses less digits than its factorization.

26820437147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19449397.

The product of its (nonzero) digits is 451584, while the sum is 44.

The spelling of 26820437147 in words is "twenty-six billion, eight hundred twenty million, four hundred thirty-seven thousand, one hundred forty-seven".