30498081769 has 3 divisors (see below), whose sum is σ = 30498256407. Its totient is φ = 30497907132.

The previous prime is 30498081767. The next prime is 30498081791. The reversal of 30498081769 is 96718089403.

The square root of 30498081769 is 174637.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 24035851225 + 6462230544 = 155035^2 + 80388^2 .

It is not a de Polignac number, because 30498081769 - 2¹ = 30498081767 is a prime.

It is a super-2 number, since 2×30498081769² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30498081767) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 87319 + ... + 261955.

It is an arithmetic number, because the mean of its divisors is an integer number (10166085469).

Almost surely, 2^30498081769 is an apocalyptic number.

30498081769 is the 174637-th square number.

30498081769 is the 87319-th centered octagonal number.

It is an amenable number.

30498081769 is a deficient number, since it is larger than the sum of its proper divisors (174638).

30498081769 is an frugal number, since it uses more digits than its factorization.

30498081769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 349274 (or 174637 counting only the distinct ones).

The product of its (nonzero) digits is 2612736, while the sum is 55.

The spelling of 30498081769 in words is "thirty billion, four hundred ninety-eight million, eighty-one thousand, seven hundred sixty-nine".