3061639862820 has 576 divisors, whose sum is σ = 12196071014400. Its totient is φ = 615658579200.

The previous prime is 3061639862791. The next prime is 3061639862821. The reversal of 3061639862820 is 282689361603.

3061639862820 is a `hidden beast` number, since 3 + 0 + 6 + 1 + 6 + 3 + 9 + 8 + 628 + 2 + 0 = 666.

It is not an unprimeable number, because it can be changed into a prime (3061639862821) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 20980629 + ... + 21126051.

It is an arithmetic number, because the mean of its divisors is an integer number (21173734400).

Almost surely, 2^{3061639862820} is an apocalyptic number.

3061639862820 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 3061639862820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6098035507200).

3061639862820 is an abundant number, since it is smaller than the sum of its proper divisors (9134431151580).

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

3061639862820 is a wasteful number, since it uses less digits than its factorization.

3061639862820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145501 (or 145482 counting only the distinct ones).

The product of its (nonzero) digits is 4478976, while the sum is 54.

The spelling of 3061639862820 in words is "three trillion, sixty-one billion, six hundred thirty-nine million, eight hundred sixty-two thousand, eight hundred twenty".