30234618890 has 64 divisors (see below), whose sum is σ = 63407155968. Its totient is φ = 10165478400.

The previous prime is 30234618877. The next prime is 30234618893. The reversal of 30234618890 is 9881643203.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (30234618893) 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, 1428485 + ... + 1449495.

It is an arithmetic number, because the mean of its divisors is an integer number (990736812).

Almost surely, 2^30234618890 is an apocalyptic number.

30234618890 is an abundant number, since it is smaller than the sum of its proper divisors (33172537078).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30234618890 is a wasteful number, since it uses less digits than its factorization.

30234618890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21423.

The product of its (nonzero) digits is 248832, while the sum is 44.

The spelling of 30234618890 in words is "thirty billion, two hundred thirty-four million, six hundred eighteen thousand, eight hundred ninety".