30819909135 has 32 divisors (see below), whose sum is σ = 49786007040. Its totient is φ = 16279804800.

The previous prime is 30819909097. The next prime is 30819909137. The reversal of 30819909135 is 53190991803.

It is a Cunningham number, because it is equal to 175556²-1.

It is a de Polignac number, because none of the positive numbers 2^k-30819909135 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30819909137) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 860230 + ... + 895340.

It is an arithmetic number, because the mean of its divisors is an integer number (1555812720).

Almost surely, 2^30819909135 is an apocalyptic number.

30819909135 is a deficient number, since it is larger than the sum of its proper divisors (18966097905).

30819909135 is a wasteful number, since it uses less digits than its factorization.

30819909135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35679.

The product of its (nonzero) digits is 262440, while the sum is 48.

The spelling of 30819909135 in words is "thirty billion, eight hundred nineteen million, nine hundred nine thousand, one hundred thirty-five".