72020560750729 has 8 divisors (see below), whose sum is σ = 72062003859840. Its totient is φ = 71979123975696.

The previous prime is 72020560750727. The next prime is 72020560750763. The reversal of 72020560750729 is 92705706502027.

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 72020560750729 - 2¹ = 72020560750727 is a prime.

It is a super-2 number, since 2×72020560750729² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72020560750727) 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, 21258394 + ... + 24412300.

It is an arithmetic number, because the mean of its divisors is an integer number (9007750482480).

Almost surely, 2^{72020560750729} is an apocalyptic number.

It is an amenable number.

72020560750729 is a deficient number, since it is larger than the sum of its proper divisors (41443109111).

72020560750729 is a wasteful number, since it uses less digits than its factorization.

72020560750729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3167039.

The product of its (nonzero) digits is 3704400, while the sum is 52.

The spelling of 72020560750729 in words is "seventy-two trillion, twenty billion, five hundred sixty million, seven hundred fifty thousand, seven hundred twenty-nine".