5646731520 has 144 divisors (see below), whose sum is σ = 18656487360. Its totient is φ = 1453842432.

The previous prime is 5646731513. The next prime is 5646731527. The reversal of 5646731520 is 251376465.

It is an interprime number because it is at equal distance from previous prime (5646731513) and next prime (5646731527).

It is not an unprimeable number, because it can be changed into a prime (5646731527) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 86007 + ... + 136713.

It is an arithmetic number, because the mean of its divisors is an integer number (129558940).

Almost surely, 2^5646731520 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 5646731520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9328243680).

5646731520 is an abundant number, since it is smaller than the sum of its proper divisors (13009755840).

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

5646731520 is a wasteful number, since it uses less digits than its factorization.

5646731520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50760 (or 50746 counting only the distinct ones).

The product of its (nonzero) digits is 151200, while the sum is 39.

The square root of 5646731520 is about 75144.7371410666. The cubic root of 5646731520 is about 1780.7339816933.

The spelling of 5646731520 in words is "five billion, six hundred forty-six million, seven hundred thirty-one thousand, five hundred twenty".