3061312520 has 64 divisors (see below), whose sum is σ = 7911648000. Its totient is φ = 1044299520.

The previous prime is 3061312487. The next prime is 3061312613. The reversal of 3061312520 is 252131603.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28250 + ... + 83190.

It is an arithmetic number, because the mean of its divisors is an integer number (123619500).

Almost surely, 2^3061312520 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 3061312520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3955824000).

3061312520 is an abundant number, since it is smaller than the sum of its proper divisors (4850335480).

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

3061312520 is a wasteful number, since it uses less digits than its factorization.

3061312520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55158 (or 55154 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 3061312520 is about 55329.1290370633. The cubic root of 3061312520 is about 1452.0087134286.

The spelling of 3061312520 in words is "three billion, sixty-one million, three hundred twelve thousand, five hundred twenty".