30387346505 has 16 divisors (see below), whose sum is σ = 36708249600. Its totient is φ = 24147954240.

The previous prime is 30387346501. The next prime is 30387346529. The reversal of 30387346505 is 50564378303.

It is not a de Polignac number, because 30387346505 - 2² = 30387346501 is a prime.

It is a super-2 number, since 2×30387346505² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (30387346501) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 654656 + ... + 699534.

It is an arithmetic number, because the mean of its divisors is an integer number (2294265600).

Almost surely, 2^30387346505 is an apocalyptic number.

It is an amenable number.

30387346505 is a deficient number, since it is larger than the sum of its proper divisors (6320903095).

30387346505 is a wasteful number, since it uses less digits than its factorization.

30387346505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45784.

The product of its (nonzero) digits is 907200, while the sum is 44.

The spelling of 30387346505 in words is "thirty billion, three hundred eighty-seven million, three hundred forty-six thousand, five hundred five".