30829973653 has 4 divisors (see below), whose sum is σ = 30847093708. Its totient is φ = 30812853600.

The previous prime is 30829973627. The next prime is 30829973723. The reversal of 30829973653 is 35637992803.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3106724644 + 27723249009 = 55738^2 + 166503^2 .

It is a cyclic number.

It is not a de Polignac number, because 30829973653 - 2⁵ = 30829973621 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30829973594 and 30829973603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30829973453) 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, 8557326 + ... + 8560927.

It is an arithmetic number, because the mean of its divisors is an integer number (7711773427).

Almost surely, 2^30829973653 is an apocalyptic number.

It is an amenable number.

30829973653 is a deficient number, since it is larger than the sum of its proper divisors (17120055).

30829973653 is a wasteful number, since it uses less digits than its factorization.

30829973653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17120054.

The product of its (nonzero) digits is 7348320, while the sum is 55.

The spelling of 30829973653 in words is "thirty billion, eight hundred twenty-nine million, nine hundred seventy-three thousand, six hundred fifty-three".