30992847890 has 16 divisors (see below), whose sum is σ = 55796318208. Its totient is φ = 12395096496.

The previous prime is 30992847887. The next prime is 30992847929. The reversal of 30992847890 is 9874829903.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 190832 + ... + 313691.

It is an arithmetic number, because the mean of its divisors is an integer number (3487269888).

Almost surely, 2^30992847890 is an apocalyptic number.

30992847890 is a deficient number, since it is larger than the sum of its proper divisors (24803470318).

30992847890 is a wasteful number, since it uses less digits than its factorization.

30992847890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 510673.

The product of its (nonzero) digits is 7838208, while the sum is 59.

The spelling of 30992847890 in words is "thirty billion, nine hundred ninety-two million, eight hundred forty-seven thousand, eight hundred ninety".