20726733147 has 8 divisors (see below), whose sum is σ = 27846603840. Its totient is φ = 13712342280.

The previous prime is 20726733133. The next prime is 20726733163. The reversal of 20726733147 is 74133762702.

It is a happy number.

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

It is not a de Polignac number, because 20726733147 - 2²³ = 20718344539 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20726733099 and 20726733108.

It is not an unprimeable number, because it can be changed into a prime (20726733127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26369497 + ... + 26370282.

It is an arithmetic number, because the mean of its divisors is an integer number (3480825480).

Almost surely, 2^20726733147 is an apocalyptic number.

20726733147 is a deficient number, since it is larger than the sum of its proper divisors (7119870693).

20726733147 is a wasteful number, since it uses less digits than its factorization.

20726733147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52739913.

The product of its (nonzero) digits is 296352, while the sum is 42.

The spelling of 20726733147 in words is "twenty billion, seven hundred twenty-six million, seven hundred thirty-three thousand, one hundred forty-seven".