30720541260 has 96 divisors (see below), whose sum is σ = 87818411520. Its totient is φ = 8021721088.

The previous prime is 30720541253. The next prime is 30720541273. The reversal of 30720541260 is 6214502703.

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

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, 892897 + ... + 926663.

It is an arithmetic number, because the mean of its divisors is an integer number (914775120).

Almost surely, 2^30720541260 is an apocalyptic number.

30720541260 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30720541260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43909205760).

30720541260 is an abundant number, since it is smaller than the sum of its proper divisors (57097870260).

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

30720541260 is a wasteful number, since it uses less digits than its factorization.

30720541260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34095 (or 34093 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 30.

The spelling of 30720541260 in words is "thirty billion, seven hundred twenty million, five hundred forty-one thousand, two hundred sixty".