30772988069 has 32 divisors (see below), whose sum is σ = 34698240000. Its totient is φ = 27151749504.

The previous prime is 30772988063. The next prime is 30772988083. The reversal of 30772988069 is 96088927703.

It is a de Polignac number, because none of the positive numbers 2^k-30772988069 is a prime.

It is a super-2 number, since 2×30772988069² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30772987999 and 30772988017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30772988063) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4083497 + ... + 4091025.

It is an arithmetic number, because the mean of its divisors is an integer number (1084320000).

Almost surely, 2^30772988069 is an apocalyptic number.

It is an amenable number.

30772988069 is a deficient number, since it is larger than the sum of its proper divisors (3925251931).

30772988069 is a wasteful number, since it uses less digits than its factorization.

30772988069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7817.

The product of its (nonzero) digits is 9144576, while the sum is 59.

The spelling of 30772988069 in words is "thirty billion, seven hundred seventy-two million, nine hundred eighty-eight thousand, sixty-nine".