4531215412620 has 240 divisors, whose sum is σ = 15330814514400. Its totient is φ = 1113715298304.

The previous prime is 4531215412613. The next prime is 4531215412643. The reversal of 4531215412620 is 262145121354.

4531215412620 is a `hidden beast` number, since 4 + 5 + 3 + 1 + 2 + 15 + 4 + 12 + 620 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 14013531 + ... + 14333229.

It is an arithmetic number, because the mean of its divisors is an integer number (63878393810).

Almost surely, 2^{4531215412620} 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 4531215412620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7665407257200).

4531215412620 is an abundant number, since it is smaller than the sum of its proper divisors (10799599101780).

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

4531215412620 is a wasteful number, since it uses less digits than its factorization.

4531215412620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 320406 (or 320395 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 36.

The spelling of 4531215412620 in words is "four trillion, five hundred thirty-one billion, two hundred fifteen million, four hundred twelve thousand, six hundred twenty".