3212515020540 has 192 divisors, whose sum is σ = 10303644847104. Its totient is φ = 732605202432.

The previous prime is 3212515020529. The next prime is 3212515020593. The reversal of 3212515020540 is 450205152123.

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

It is a junction number, because it is equal to n+sod(n) for n = 3212515020498 and 3212515020507.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 716597139 + ... + 716601621.

It is an arithmetic number, because the mean of its divisors is an integer number (53664816912).

Almost surely, 2^{3212515020540} is an apocalyptic number.

3212515020540 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 3212515020540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5151822423552).

3212515020540 is an abundant number, since it is smaller than the sum of its proper divisors (7091129826564).

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

3212515020540 is a wasteful number, since it uses less digits than its factorization.

3212515020540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8036 (or 8034 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 30.

The spelling of 3212515020540 in words is "three trillion, two hundred twelve billion, five hundred fifteen million, twenty thousand, five hundred forty".