30880561228540 has 12 divisors (see below), whose sum is σ = 64849178579976. Its totient is φ = 12352224491408.

The previous prime is 30880561228513. The next prime is 30880561228547. The reversal of 30880561228540 is 4582216508803.

It is a super-2 number, since 2×30880561228540² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30880561228547) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 772014030694 + ... + 772014030733.

It is an arithmetic number, because the mean of its divisors is an integer number (5404098214998).

Almost surely, 2^{30880561228540} is an apocalyptic number.

It is an amenable number.

30880561228540 is an abundant number, since it is smaller than the sum of its proper divisors (33968617351436).

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

30880561228540 is a wasteful number, since it uses less digits than its factorization.

30880561228540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1544028061436 (or 1544028061434 counting only the distinct ones).

The product of its (nonzero) digits is 3686400, while the sum is 52.

The spelling of 30880561228540 in words is "thirty trillion, eight hundred eighty billion, five hundred sixty-one million, two hundred twenty-eight thousand, five hundred forty".