5307731820 has 96 divisors (see below), whose sum is σ = 16523619840. Its totient is φ = 1414480320.

The previous prime is 5307731801. The next prime is 5307731879. The reversal of 5307731820 is 281377035.

5307731820 is a `hidden beast` number, since 530 + 77 + 31 + 8 + 20 = 666.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1436175 + ... + 1439865.

It is an arithmetic number, because the mean of its divisors is an integer number (172121040).

Almost surely, 2^5307731820 is an apocalyptic number.

It is an amenable number.

5307731820 is an abundant number, since it is smaller than the sum of its proper divisors (11215888020).

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

5307731820 is a wasteful number, since it uses less digits than its factorization.

5307731820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6372 (or 6364 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 36.

The square root of 5307731820 is about 72854.1818978156. The cubic root of 5307731820 is about 1744.3608215046.

The spelling of 5307731820 in words is "five billion, three hundred seven million, seven hundred thirty-one thousand, eight hundred twenty".