5129761650 has 96 divisors (see below), whose sum is σ = 13717955328. Its totient is φ = 1261094400.

The previous prime is 5129761643. The next prime is 5129761661. The reversal of 5129761650 is 561679215.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2399382 + ... + 2401518.

It is an arithmetic number, because the mean of its divisors is an integer number (142895368).

Almost surely, 2^5129761650 is an apocalyptic number.

5129761650 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 5129761650, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6858977664).

5129761650 is an abundant number, since it is smaller than the sum of its proper divisors (8588193678).

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

5129761650 is a wasteful number, since it uses less digits than its factorization.

5129761650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3396 (or 3391 counting only the distinct ones).

The product of its (nonzero) digits is 113400, while the sum is 42.

The square root of 5129761650 is about 71622.3544014018. The cubic root of 5129761650 is about 1724.6424127509.

The spelling of 5129761650 in words is "five billion, one hundred twenty-nine million, seven hundred sixty-one thousand, six hundred fifty".