30919808390 has 8 divisors (see below), whose sum is σ = 55655655120. Its totient is φ = 12367923352.

The previous prime is 30919808377. The next prime is 30919808401. The reversal of 30919808390 is 9380891903.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1545990410 + ... + 1545990429.

It is an arithmetic number, because the mean of its divisors is an integer number (6956956890).

Almost surely, 2^30919808390 is an apocalyptic number.

30919808390 is a deficient number, since it is larger than the sum of its proper divisors (24735846730).

30919808390 is a wasteful number, since it uses less digits than its factorization.

30919808390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3091980846.

The product of its (nonzero) digits is 419904, while the sum is 50.

The spelling of 30919808390 in words is "thirty billion, nine hundred nineteen million, eight hundred eight thousand, three hundred ninety".