30115623630 has 32 divisors (see below), whose sum is σ = 74609031168. Its totient is φ = 7771773600.

The previous prime is 30115623619. The next prime is 30115623631. The reversal of 30115623630 is 3632651103.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30115623631) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16190266 + ... + 16192125.

It is an arithmetic number, because the mean of its divisors is an integer number (2331532224).

Almost surely, 2^30115623630 is an apocalyptic number.

30115623630 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

30115623630 is an abundant number, since it is smaller than the sum of its proper divisors (44493407538).

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

30115623630 is a wasteful number, since it uses less digits than its factorization.

30115623630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32382432.

The product of its (nonzero) digits is 9720, while the sum is 30.

The spelling of 30115623630 in words is "thirty billion, one hundred fifteen million, six hundred twenty-three thousand, six hundred thirty".