39720574897 has 8 divisors (see below), whose sum is σ = 40440880800. Its totient is φ = 39001838304.

The previous prime is 39720574889. The next prime is 39720574903. The reversal of 39720574897 is 79847502793.

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 39720574897 - 2³ = 39720574889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (39720574807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 341188 + ... + 442549.

It is an arithmetic number, because the mean of its divisors is an integer number (5055110100).

Almost surely, 2^39720574897 is an apocalyptic number.

It is an amenable number.

39720574897 is a deficient number, since it is larger than the sum of its proper divisors (720305903).

39720574897 is an equidigital number, since it uses as much as digits as its factorization.

39720574897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 784655.

The product of its (nonzero) digits is 26671680, while the sum is 61.

The spelling of 39720574897 in words is "thirty-nine billion, seven hundred twenty million, five hundred seventy-four thousand, eight hundred ninety-seven".