30145689079081 has 9 divisors (see below), whose sum is σ = 30218167054173. Its totient is φ = 30073384566060.

The previous prime is 30145689079069. The next prime is 30145689079109. The reversal of 30145689079081 is 18097098654103.

The square root of 30145689079081 is 5490509.

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

It is not a de Polignac number, because 30145689079081 - 2¹¹ = 30145689077033 is a prime.

It is a super-2 number, since 2×30145689079081² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30145689079061) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 2366403010 + ... + 2366415748.

Almost surely, 2^{30145689079081} is an apocalyptic number.

30145689079081 is the 5490509-th square number.

30145689079081 is the 2745255-th centered octagonal number.

It is an amenable number.

30145689079081 is a deficient number, since it is larger than the sum of its proper divisors (72477975092).

30145689079081 is an frugal number, since it uses more digits than its factorization.

30145689079081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26340 (or 13170 counting only the distinct ones).

The product of its (nonzero) digits is 13063680, while the sum is 61.

The spelling of 30145689079081 in words is "thirty trillion, one hundred forty-five billion, six hundred eighty-nine million, seventy-nine thousand, eighty-one".