537622081920 has 1024 divisors, whose sum is σ = 2455951104000. Its totient is φ = 107853742080.

The previous prime is 537622081873. The next prime is 537622081939. The reversal of 537622081920 is 29180226735.

537622081920 is a `hidden beast` number, since 5 + 3 + 7 + 622 + 0 + 8 + 19 + 2 + 0 = 666.

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

It is a congruent number.

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 127 ways as a sum of consecutive naturals, for example, 38579274 + ... + 38593206.

It is an arithmetic number, because the mean of its divisors is an integer number (2398389750).

Almost surely, 2^537622081920 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 537622081920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1227975552000).

537622081920 is an abundant number, since it is smaller than the sum of its proper divisors (1918329022080).

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

537622081920 is a wasteful number, since it uses less digits than its factorization.

537622081920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14008 (or 13990 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The spelling of 537622081920 in words is "five hundred thirty-seven billion, six hundred twenty-two million, eighty-one thousand, nine hundred twenty".