5149395720 has 128 divisors (see below), whose sum is σ = 19616774400. Its totient is φ = 1177003008.

The previous prime is 5149395707. The next prime is 5149395737. The reversal of 5149395720 is 275939415.

It is a happy number.

5149395720 is a `hidden beast` number, since 5 + 1 + 49 + 39 + 572 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 333009 + ... + 348128.

It is an arithmetic number, because the mean of its divisors is an integer number (153256050).

Almost surely, 2^5149395720 is an apocalyptic number.

It is an amenable number.

5149395720 is an abundant number, since it is smaller than the sum of its proper divisors (14467378680).

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

5149395720 is a wasteful number, since it uses less digits than its factorization.

5149395720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 681164 (or 681154 counting only the distinct ones).

The product of its (nonzero) digits is 340200, while the sum is 45.

The square root of 5149395720 is about 71759.2901302682. The cubic root of 5149395720 is about 1726.8399573315.

The spelling of 5149395720 in words is "five billion, one hundred forty-nine million, three hundred ninety-five thousand, seven hundred twenty".