39929980273 has 8 divisors (see below), whose sum is σ = 42280547400. Its totient is φ = 37579607040.

The previous prime is 39929980247. The next prime is 39929980283. The reversal of 39929980273 is 37208992993.

It can be written as a sum of positive squares in 4 ways, for example, as 7983065104 + 31946915169 = 89348^2 + 178737^2 .

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

It is a de Polignac number, because none of the positive numbers 2^k-39929980273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (39929980243) 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, 796453 + ... + 845101.

It is an arithmetic number, because the mean of its divisors is an integer number (5285068425).

Almost surely, 2^39929980273 is an apocalyptic number.

It is an amenable number.

39929980273 is a deficient number, since it is larger than the sum of its proper divisors (2350567127).

39929980273 is a wasteful number, since it uses less digits than its factorization.

39929980273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96947.

The product of its (nonzero) digits is 13226976, while the sum is 61.

The spelling of 39929980273 in words is "thirty-nine billion, nine hundred twenty-nine million, nine hundred eighty thousand, two hundred seventy-three".