30655873780 has 96 divisors (see below), whose sum is σ = 74501925120. Its totient is φ = 10378368000.

The previous prime is 30655873777. The next prime is 30655873811. The reversal of 30655873780 is 8737855603.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13617655 + ... + 13619905.

It is an arithmetic number, because the mean of its divisors is an integer number (776061720).

Almost surely, 2^30655873780 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 30655873780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37250962560).

30655873780 is an abundant number, since it is smaller than the sum of its proper divisors (43846051340).

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

30655873780 is a wasteful number, since it uses less digits than its factorization.

30655873780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3449 (or 3447 counting only the distinct ones).

The product of its (nonzero) digits is 4233600, while the sum is 52.

The spelling of 30655873780 in words is "thirty billion, six hundred fifty-five million, eight hundred seventy-three thousand, seven hundred eighty".