5351209920 has 784 divisors, whose sum is σ = 22787213760. Its totient is φ = 1170505728.

The previous prime is 5351209889. The next prime is 5351209937. The reversal of 5351209920 is 299021535.

It is a happy number.

5351209920 is a `hidden beast` number, since 53 + 512 + 0 + 9 + 92 + 0 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 111 ways as a sum of consecutive naturals, for example, 47355784 + ... + 47355896.

Almost surely, 2^5351209920 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 5351209920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11393606880).

5351209920 is an abundant number, since it is smaller than the sum of its proper divisors (17436003840).

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

5351209920 is a wasteful number, since it uses less digits than its factorization.

5351209920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184 (or 159 counting only the distinct ones).

The product of its (nonzero) digits is 24300, while the sum is 36.

The square root of 5351209920 is about 73151.9645669206. The cubic root of 5351209920 is about 1749.1108321034.

The spelling of 5351209920 in words is "five billion, three hundred fifty-one million, two hundred nine thousand, nine hundred twenty".