72030617707 has 4 divisors (see below), whose sum is σ = 72078994360. Its totient is φ = 71982241056.

The previous prime is 72030617683. The next prime is 72030617713. The reversal of 72030617707 is 70771603027.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 70771603027 = 146819 ⋅482033.

It is a cyclic number.

It is not a de Polignac number, because 72030617707 - 2¹¹ = 72030615659 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 72030617707.

It is not an unprimeable number, because it can be changed into a prime (72030617777) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24186093 + ... + 24189070.

It is an arithmetic number, because the mean of its divisors is an integer number (18019748590).

Almost surely, 2^72030617707 is an apocalyptic number.

72030617707 is a deficient number, since it is larger than the sum of its proper divisors (48376653).

72030617707 is a wasteful number, since it uses less digits than its factorization.

72030617707 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48376652.

The product of its (nonzero) digits is 86436, while the sum is 40.

The spelling of 72030617707 in words is "seventy-two billion, thirty million, six hundred seventeen thousand, seven hundred seven".