30838197949 has 8 divisors (see below), whose sum is σ = 34281669632. Its totient is φ = 27547769520.

The previous prime is 30838197947. The next prime is 30838197959. The reversal of 30838197949 is 94979183803.

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 30838197949 - 2¹ = 30838197947 is a prime.

It is a super-3 number, since 3×30838197949³ (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30838197947) 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, 38260389 + ... + 38261194.

It is an arithmetic number, because the mean of its divisors is an integer number (4285208704).

Almost surely, 2^30838197949 is an apocalyptic number.

It is an amenable number.

30838197949 is a deficient number, since it is larger than the sum of its proper divisors (3443471683).

30838197949 is a wasteful number, since it uses less digits than its factorization.

30838197949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76521627.

The product of its (nonzero) digits is 11757312, while the sum is 61.

The spelling of 30838197949 in words is "thirty billion, eight hundred thirty-eight million, one hundred ninety-seven thousand, nine hundred forty-nine".