30605310505 has 64 divisors (see below), whose sum is σ = 46365032448. Its totient is φ = 18839439360.

The previous prime is 30605310497. The next prime is 30605310509. The reversal of 30605310505 is 50501350603.

It is a happy number.

It is not a de Polignac number, because 30605310505 - 2³ = 30605310497 is a prime.

It is a super-2 number, since 2×30605310505² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (30605310509) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 27746784 + ... + 27747886.

It is an arithmetic number, because the mean of its divisors is an integer number (724453632).

Almost surely, 2^30605310505 is an apocalyptic number.

30605310505 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

30605310505 is a deficient number, since it is larger than the sum of its proper divisors (15759721943).

30605310505 is a wasteful number, since it uses less digits than its factorization.

30605310505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1966.

The product of its (nonzero) digits is 6750, while the sum is 28.

The spelling of 30605310505 in words is "thirty billion, six hundred five million, three hundred ten thousand, five hundred five".