39976722257 has 8 divisors (see below), whose sum is σ = 41716987200. Its totient is φ = 38236636240.

The previous prime is 39976722241. The next prime is 39976722263. The reversal of 39976722257 is 75222767993.

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 39976722257 - 2⁴ = 39976722241 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 39976722196 and 39976722205.

It is not an unprimeable number, because it can be changed into a prime (39976722157) 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, 625994 + ... + 686892.

It is an arithmetic number, because the mean of its divisors is an integer number (5214623400).

Almost surely, 2^39976722257 is an apocalyptic number.

It is an amenable number.

39976722257 is a deficient number, since it is larger than the sum of its proper divisors (1740264943).

39976722257 is a wasteful number, since it uses less digits than its factorization.

39976722257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89463.

The product of its digits is 20003760, while the sum is 59.

The spelling of 39976722257 in words is "thirty-nine billion, nine hundred seventy-six million, seven hundred twenty-two thousand, two hundred fifty-seven".