7364855820 has 144 divisors (see below), whose sum is σ = 24499238400. Its totient is φ = 1647547776.

The previous prime is 7364855761. The next prime is 7364855881. The reversal of 7364855820 is 285584637.

It is a super-2 number, since 2×7364855820² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 7364855820.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 111531 + ... + 164829.

It is an arithmetic number, because the mean of its divisors is an integer number (170133600).

Almost surely, 2^7364855820 is an apocalyptic number.

7364855820 is a gapful number since it is divisible by the number (70) 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 7364855820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12249619200).

7364855820 is an abundant number, since it is smaller than the sum of its proper divisors (17134382580).

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

7364855820 is a wasteful number, since it uses less digits than its factorization.

7364855820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53372 (or 53363 counting only the distinct ones).

The product of its (nonzero) digits is 1612800, while the sum is 48.

The square root of 7364855820 is about 85818.7381636435. The cubic root of 7364855820 is about 1945.6053406658.

The spelling of 7364855820 in words is "seven billion, three hundred sixty-four million, eight hundred fifty-five thousand, eight hundred twenty".