20740104273 has 16 divisors (see below), whose sum is σ = 31606016000. Its totient is φ = 11850720336.

The previous prime is 20740104257. The next prime is 20740104293. The reversal of 20740104273 is 37240104702.

It is not a de Polignac number, because 20740104273 - 2⁴ = 20740104257 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20740104273.

It is not an unprimeable number, because it can be changed into a prime (20740104223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 526986 + ... + 564972.

It is an arithmetic number, because the mean of its divisors is an integer number (1975376000).

Almost surely, 2^20740104273 is an apocalyptic number.

It is an amenable number.

20740104273 is a deficient number, since it is larger than the sum of its proper divisors (10865911727).

20740104273 is a wasteful number, since it uses less digits than its factorization.

20740104273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63996.

The product of its (nonzero) digits is 9408, while the sum is 30.

Adding to 20740104273 its reverse (37240104702), we get a palindrome (57980208975).

The spelling of 20740104273 in words is "twenty billion, seven hundred forty million, one hundred four thousand, two hundred seventy-three".