20748599273 has 16 divisors (see below), whose sum is σ = 21320448000. Its totient is φ = 20182519872.

The previous prime is 20748599269. The next prime is 20748599309. The reversal of 20748599273 is 37299584702.

It is a cyclic number.

It is not a de Polignac number, because 20748599273 - 2² = 20748599269 is a prime.

It is a super-2 number, since 2×20748599273² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20748592273) 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, 7629608 + ... + 7632326.

It is an arithmetic number, because the mean of its divisors is an integer number (1332528000).

Almost surely, 2^20748599273 is an apocalyptic number.

It is an amenable number.

20748599273 is a deficient number, since it is larger than the sum of its proper divisors (571848727).

20748599273 is a wasteful number, since it uses less digits than its factorization.

20748599273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3704.

The product of its (nonzero) digits is 7620480, while the sum is 56.

The spelling of 20748599273 in words is "twenty billion, seven hundred forty-eight million, five hundred ninety-nine thousand, two hundred seventy-three".