20710507273 has 8 divisors (see below), whose sum is σ = 21122249760. Its totient is φ = 20300788800.

The previous prime is 20710507271. The next prime is 20710507289. The reversal of 20710507273 is 37270501702.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 20710507273 - 2¹ = 20710507271 is a prime.

It is a super-2 number, since 2×20710507273² (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 (20710507271) 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, 485328 + ... + 526273.

It is an arithmetic number, because the mean of its divisors is an integer number (2640281220).

Almost surely, 2^20710507273 is an apocalyptic number.

It is an amenable number.

20710507273 is a deficient number, since it is larger than the sum of its proper divisors (411742487).

20710507273 is a wasteful number, since it uses less digits than its factorization.

20710507273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1012007.

The product of its (nonzero) digits is 20580, while the sum is 34.

The spelling of 20710507273 in words is "twenty billion, seven hundred ten million, five hundred seven thousand, two hundred seventy-three".