30790773729 has 63 divisors (see below), whose sum is σ = 47352475107. Its totient is φ = 20012344704.

The previous prime is 30790773719. The next prime is 30790773731. The reversal of 30790773729 is 92737709703.

The square root of 30790773729 is 175473.

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

It can be written as a sum of positive squares in only one way, i.e., 13826232225 + 16964541504 = 117585^2 + 130248^2 .

It is not a de Polignac number, because 30790773729 - 2¹⁵ = 30790740961 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30790773719) by changing a digit.

It is a polite number, since it can be written in 62 ways as a sum of consecutive naturals, for example, 317430609 + ... + 317430705.

It is an arithmetic number, because the mean of its divisors is an integer number (751626589).

Almost surely, 2^30790773729 is an apocalyptic number.

30790773729 is the 175473-rd square number.

30790773729 is the 87737-th centered octagonal number.

It is an amenable number.

30790773729 is a deficient number, since it is larger than the sum of its proper divisors (16561701378).

30790773729 is an frugal number, since it uses more digits than its factorization.

30790773729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 346 (or 167 counting only the distinct ones).

The product of its (nonzero) digits is 3500658, while the sum is 54.

The spelling of 30790773729 in words is "thirty billion, seven hundred ninety million, seven hundred seventy-three thousand, seven hundred twenty-nine".