39720072653 has 8 divisors (see below), whose sum is σ = 40325294016. Its totient is φ = 39116123200.

The previous prime is 39720072643. The next prime is 39720072659. The reversal of 39720072653 is 35627002793.

39720072653 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 39720072653 - 2⁸ = 39720072397 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39720072659) 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, 254951 + ... + 380052.

It is an arithmetic number, because the mean of its divisors is an integer number (5040661752).

Almost surely, 2^39720072653 is an apocalyptic number.

It is an amenable number.

39720072653 is a deficient number, since it is larger than the sum of its proper divisors (605221363).

39720072653 is an equidigital number, since it uses as much as digits as its factorization.

39720072653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 635955.

The product of its (nonzero) digits is 476280, while the sum is 44.

The spelling of 39720072653 in words is "thirty-nine billion, seven hundred twenty million, seventy-two thousand, six hundred fifty-three".