30406081912919 has 4 divisors (see below), whose sum is σ = 30514288610400. Its totient is φ = 30297875215440.

The previous prime is 30406081912897. The next prime is 30406081912949. The reversal of 30406081912919 is 91921918060403.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 30406081912919 - 2²⁸ = 30405813477463 is a prime.

It is a super-3 number, since 3×30406081912919³ (a number of 41 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30406081912949) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54103348319 + ... + 54103348880.

It is an arithmetic number, because the mean of its divisors is an integer number (7628572152600).

Almost surely, 2^{30406081912919} is an apocalyptic number.

30406081912919 is a deficient number, since it is larger than the sum of its proper divisors (108206697481).

30406081912919 is a wasteful number, since it uses less digits than its factorization.

30406081912919 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108206697480.

The product of its (nonzero) digits is 839808, while the sum is 53.

The spelling of 30406081912919 in words is "thirty trillion, four hundred six billion, eighty-one million, nine hundred twelve thousand, nine hundred nineteen".