30537242705 has 12 divisors (see below), whose sum is σ = 37516723380. Its totient is φ = 23861652192.

The previous prime is 30537242683. The next prime is 30537242717. The reversal of 30537242705 is 50724273503.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 4563407809 + 25973834896 = 67553^2 + 161164^2 .

It is a de Polignac number, because none of the positive numbers 2^k-30537242705 is a prime.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1642310 + ... + 1660799.

It is an arithmetic number, because the mean of its divisors is an integer number (3126393615).

Almost surely, 2^30537242705 is an apocalyptic number.

It is an amenable number.

30537242705 is a deficient number, since it is larger than the sum of its proper divisors (6979480675).

30537242705 is an equidigital number, since it uses as much as digits as its factorization.

30537242705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3303200 (or 3303157 counting only the distinct ones).

The product of its (nonzero) digits is 176400, while the sum is 38.

It can be divided in two parts, 30 and 537242705, that added together give a palindrome (537242735).

The spelling of 30537242705 in words is "thirty billion, five hundred thirty-seven million, two hundred forty-two thousand, seven hundred five".