5921220690 has 320 divisors, whose sum is σ = 20022266880. Its totient is φ = 1219743360.

The previous prime is 5921220659. The next prime is 5921220691. The reversal of 5921220690 is 960221295.

It is a happy number.

5921220690 is a `hidden beast` number, since 592 + 1 + 2 + 2 + 0 + 69 + 0 = 666.

It is a super-2 number, since 2×5921220690² = 70121708919368152200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (5921220691) by changing a digit.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 8669089 + ... + 8669771.

It is an arithmetic number, because the mean of its divisors is an integer number (62569584).

Almost surely, 2^5921220690 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5921220690, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10011133440).

5921220690 is an abundant number, since it is smaller than the sum of its proper divisors (14101046190).

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

5921220690 is a wasteful number, since it uses less digits than its factorization.

5921220690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 859 (or 850 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 36.

The square root of 5921220690 is about 76949.4684192165. The cubic root of 5921220690 is about 1809.1326685042.

The spelling of 5921220690 in words is "five billion, nine hundred twenty-one million, two hundred twenty thousand, six hundred ninety".