30750832505 has 16 divisors (see below), whose sum is σ = 37810281600. Its totient is φ = 23994771840.

The previous prime is 30750832501. The next prime is 30750832531. The reversal of 30750832505 is 50523805703.

It is not a de Polignac number, because 30750832505 - 2² = 30750832501 is a prime.

It is a super-2 number, since 2×30750832505² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (30750832501) 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, 943166 + ... + 975224.

It is an arithmetic number, because the mean of its divisors is an integer number (2363142600).

Almost surely, 2^30750832505 is an apocalyptic number.

It is an amenable number.

30750832505 is a deficient number, since it is larger than the sum of its proper divisors (7059449095).

30750832505 is a wasteful number, since it uses less digits than its factorization.

30750832505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36784.

The product of its (nonzero) digits is 126000, while the sum is 38.

The spelling of 30750832505 in words is "thirty billion, seven hundred fifty million, eight hundred thirty-two thousand, five hundred five".