30520479510720 has 1344 divisors, whose sum is σ = 122315293900800. Its totient is φ = 6933375221760.

The previous prime is 30520479510707. The next prime is 30520479510743. The reversal of 30520479510720 is 2701597402503.

It is a happy number.

30520479510720 is a `hidden beast` number, since 3 + 0 + 5 + 20 + 47 + 9 + 510 + 72 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 2278151062 + ... + 2278164458.

It is an arithmetic number, because the mean of its divisors is an integer number (91008403200).

Almost surely, 2^{30520479510720} is an apocalyptic number.

30520479510720 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 30520479510720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61157646950400).

30520479510720 is an abundant number, since it is smaller than the sum of its proper divisors (91794814390080).

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

30520479510720 is a wasteful number, since it uses less digits than its factorization.

30520479510720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13566 (or 13553 counting only the distinct ones).

The product of its (nonzero) digits is 529200, while the sum is 45.

The spelling of 30520479510720 in words is "thirty trillion, five hundred twenty billion, four hundred seventy-nine million, five hundred ten thousand, seven hundred twenty".