30906892190 has 32 divisors (see below), whose sum is σ = 55890000000. Its totient is φ = 12305599488.

The previous prime is 30906892153. The next prime is 30906892201. The reversal of 30906892190 is 9129860903.

It is a super-2 number, since 2×30906892190² (a number of 22 digits) contains 22 as substring.

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 15 ways as a sum of consecutive naturals, for example, 3355211 + ... + 3364409.

It is an arithmetic number, because the mean of its divisors is an integer number (1746562500).

Almost surely, 2^30906892190 is an apocalyptic number.

30906892190 is a deficient number, since it is larger than the sum of its proper divisors (24983107810).

30906892190 is a wasteful number, since it uses less digits than its factorization.

30906892190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10724.

The product of its (nonzero) digits is 209952, while the sum is 47.

The spelling of 30906892190 in words is "thirty billion, nine hundred six million, eight hundred ninety-two thousand, one hundred ninety".