30698544128 has 88 divisors (see below), whose sum is σ = 70388043744. Its totient is φ = 13108838400.

The previous prime is 30698544119. The next prime is 30698544137. The reversal of 30698544128 is 82144589603.

It is an interprime number because it is at equal distance from previous prime (30698544119) and next prime (30698544137).

It is a super-2 number, since 2×30698544128² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

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, 2006588 + ... + 2021828.

Almost surely, 2^30698544128 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30698544128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35194021872).

30698544128 is an abundant number, since it is smaller than the sum of its proper divisors (39689499616).

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

30698544128 is a wasteful number, since it uses less digits than its factorization.

30698544128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15549 (or 15531 counting only the distinct ones).

The product of its (nonzero) digits is 1658880, while the sum is 50.

The spelling of 30698544128 in words is "thirty billion, six hundred ninety-eight million, five hundred forty-four thousand, one hundred twenty-eight".