5147220816 has 50 divisors (see below), whose sum is σ = 14897554122. Its totient is φ = 1715739840.

The previous prime is 5147220773. The next prime is 5147220833. The reversal of 5147220816 is 6180227415.

It can be written as a sum of positive squares in only one way, i.e., 4531982400 + 615238416 = 67320^2 + 24804^2 .

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 9 ways as a sum of consecutive naturals, for example, 1984515 + ... + 1987106.

Almost surely, 2^5147220816 is an apocalyptic number.

It is an amenable number.

5147220816 is an abundant number, since it is smaller than the sum of its proper divisors (9750333306).

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

5147220816 is a wasteful number, since it uses less digits than its factorization.

5147220816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3971641 (or 3971626 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 36.

The square root of 5147220816 is about 71744.1343665111. The cubic root of 5147220816 is about 1726.5968064704.

It can be divided in two parts, 51472208 and 16, that multiplied together give a palindrome (823555328).

The spelling of 5147220816 in words is "five billion, one hundred forty-seven million, two hundred twenty thousand, eight hundred sixteen".