30989999958 has 64 divisors (see below), whose sum is σ = 68401262592. Its totient is φ = 9317283840.

The previous prime is 30989999921. The next prime is 30989999959. The reversal of 30989999958 is 85999998903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30989999959) 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, 278110 + ... + 373262.

It is an arithmetic number, because the mean of its divisors is an integer number (1068769728).

Almost surely, 2^30989999958 is an apocalyptic number.

30989999958 is an abundant number, since it is smaller than the sum of its proper divisors (37411262634).

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

30989999958 is a wasteful number, since it uses less digits than its factorization.

30989999958 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95309.

The product of its (nonzero) digits is 510183360, while the sum is 78.

The spelling of 30989999958 in words is "thirty billion, nine hundred eighty-nine million, nine hundred ninety-nine thousand, nine hundred fifty-eight".